27-Jan-1981 1981 Registered Mail from Muscat to England   (1)
07-Feb-1981 1981 First Day Cover: National Police Day   (1)
19-Feb-1981 1981 Registered Mail from Matrah to England   (1)
19-Mar-1981    (1)
18-May-1981 1981 Registered Mail from Central PO (Muscat) to England   (1)
01-Jul-1981 1981 Registered Airmail from Seeb to Abu Dhabi   (1)
19-Sep-1981 1981 Registered Mail from Central Post Office (Muscat) to England   (1)
18-Nov-1981 1982 First Day Cover: National Police Day with Date Error   (1)
02-Dec-1981 1981 Registered Mail from Mina al Fahal to USA   (1)
04-Dec-1981 1981 Registered Mail from Central Post Office (Muscat) to Kuwait   (1)
05-Jan-1982 1982 First Day Cover: National Police Day   (1)
11-Jan-1982 1982 Registered Mail from Nizwa to West Germany   (1)
13-Feb-1982 1982 Registered Mail from Matrah to Malta   (1)
12-May-1982 1982 Registered Mail from Seeb Airport to West Germany   (1)
20-Jun-1982 1982 Registered Local Mail from Mudhaibi to Ruwi   (1)
30-Jun-1982 1982 Registered Mail from Mudhairab to USA   (1)
01-Jul-1982 1982 First Day Cover: The Definitive Issue   (3)
03-Jul-1982 1982 Registered Local Mail from Badiya to Ruwi   (1)
26-Jul-1982 1982 Registered Mail from Salalah to USA   (1)
27-Jul-1982 1982 Registered Local Mail from Taqa to Al-Mudhairib   (1)
27-Jul-1982 1982 Registered Local Mail from Taqa to Ruwi   (1)
28-Jul-1982 1982 Registered Mail from Mirbat (Marbat) to Ruwi   (1)
05-Aug-1982 1982 Registered Mail from Seeb Airport to USA   (1)
09-Aug-1982 1982 Registered Mail from Rostaq to Qatar   (1)
10-Aug-1982 1982 Registered Mail from Ministerial Complex to Qatar   (1)
16-Aug-1982 1982 Registered Mail from Buraimi to Malta   (1)
24-Aug-1982 1982 Registered Mail from Madinat Qaboos to Ruwi   (1)
25-Aug-1982 1982 Local Registered Mail from Mudhaibi to Ruwi   (1)
29-Aug-1982 1982 Registered Local Mail from Sur to Ruwi   (1)
04-Oct-1982 1982 Registered Local Mail from Madinat Qaboos to Ruwi   (1)
09-Oct-1982 1982 Registered Mail from Bilad Bani Bu Hassan (Jalan Bani Buhassan)   (1)
11-Oct-1982 1982 Registered Mail from Badiya to USA   (1)
23-Oct-1982 1982 Registered Mail from Madinat Qaboos to USA   (1)
06-Nov-1982 1982 First Day Cover: Municipalities Week   (1)
05-Jan-1983 1983 First Day Cover: National Police Day   (1)
25-Jan-1983 1983 Registered Mail from Nizwa to West Germany   (1)
01-Feb-1983 1983 Registered Mail from Seeb Airport to West Germany   (1)
21-Feb-1983 World Communicatio Year 1983   (1)
22-Feb-1983 1983 Registered Local Mail from Bahla to Ruwi   (1)
02-Mar-1983 1983 Registered Local Mail from Madinat Qaboos to Nizwa   (1)
06-Mar-1983 1983 Registered Mail from Masna (Al-Musnaa) to USA   (1)
12-Mar-1983 1983 Registered Mail from Salalah CPO to England   (1)
24-Mar-1983 1983 Registered Local Mail from Muscat to Nizwa   (1)
05-Jul-1983 1983 Registered Mail from Khaboora to Qatar   (1)
15-Aug-1983 1983 Honeybees in Oman was issued as Se-Tenant Pairs in the Sheets   (1)
02-Oct-1983 20th Anniversary of the WFP - 1983   (1)
11-Oct-1983 1983 Registered Mail from Yanqal to Sri Lanka   (1)
18-Nov-1983 1983 First Day Cover: Armed Forces Day with Wrong Date (18.11.1983)   (1)
18-Nov-1983 1983 First Day Cover: National Day   (1)
22-Nov-1983 1983 Registered Local Mail from Khasab to Ruwi   (1)
11-Dec-1983 1983 First Day Cover: Armed Forces Day   (1)
05-Jan-1984 1984 First Day Cover: Police Day   (1)
21-Jan-1984 1984 Registered Local Mail from Khaboora to Nizwa   (1)
25-Jan-1984 1984 Registered Local Mail from Ibri   (1)
26-Jan-1984 1984 Registered Mail from Salalah CPO to India   (1)
14-Feb-1984 1984 Registered Mail from Nizwa to Greece   (1)
16-Feb-1984 1984 Registered Local Mail from Ibri to Ruwi   (1)
04-Mar-1984 1984 Registered Local Mail from Saham to Nizwa   (1)
09-Mar-1984 1984 First Day Cover: 7th Arabian Gulf Cup Football Tournament   (1)
15-Mar-1984 1984 Registered Mail from Ibri to Ruwi   (1)
10-Apr-1984 1984 Local Registered Mail from Mudhaibi to Nizwa   (1)
10-Apr-1984 1984 Registered Mail from Yankal to Sri Lanka   (1)
30-Apr-1984 1984 Registered Mail from Nizwa to East Germany   (1)
30-Apr-1984 1984 Registered Mail from Nizwa to West Germany   (1)
03-May-1984 1984 Registered Local Mail from Masna to Nizwa   (1)
25-Jul-1984 1984 Local Registered Mail from Diba to Ruwi   (1)
10-Oct-1984 1984 Incoming Mail from Pakistan to Nizwa - Postage Due   (1)
22-Oct-1984 1984 Registered Local Mail from Yanqal to Nizwa   (1)
18-Nov-1984 1984 First Day Cover: National Day   (1)
21-Nov-1984 1984 Local Registered Mail from Fanja to Nizwa   (1)
26-Nov-1984 1984 Registered Local Mail from Sohar to Nizwa   (1)
05-Dec-1984 1984 First Day Cover: 16th Conference of Arab Scouts   (1)
11-Dec-1984 1984 First Day Cover: Armed Forces Day   (1)
26-Dec-1984 1984 Registered Local Mail from Taqa to Ruwi   (2)
03-Jan-1985 1985 Local Registered Mail from Al-Buraimi to Nizwa   (1)
03-Jan-1985 1985 Registered Local Mail from Samail to Nizwa   (1)
05-Jan-1985 1985 First Day Cover: Police Day   (1)
08-Jan-1985 Arabic Day for Eradication of Illiteracy 1985   (1)
09-Jan-1985 1985 Local Registered Mail from Fanja to Nizwa   (1)
12-Jan-1985 1985 Registered Local Mail from Bahla to Nizwa   (1)
05-Feb-1985 1985 Registered Local Mail from Kamil to Nizwa   (1)
09-Feb-1985 1985 Registered Mail from Ibri to East Germany   (1)
25-Feb-1985 1985 Registered Local Mail from Ibra to Ibri   (1)
12-Mar-1985 1984 Registered Mail from Salalah CPO to Nizwa   (1)
14-Mar-1985 1985 Registered Local Mail from Quriyat to Ibri   (1)
20-Mar-1985 1985 Registered Mail from Mirbat (Marbat) to Ibri   (1)
26-Mar-1985 1985 Registered Local Express Mail from Badiya to Ibri   (1)
26-Mar-1985 1985 Registered Local Mail from Badiya to Ibri   (1)
14-Apr-1985 1985 Registered Mail from Ibri to West Germany   (1)
05-May-1985 1985 Registered Local Mail from Sur to Nizwa   (1)
06-May-1985 1985 Registered Local Mail from Suwaiq to Ibri   (1)
07-May-1985 1985 Registered Local Mail from Masirah to Ibri   (1)
11-May-1985 1985 Registered Local Mail from Shinas to Ibri   (1)
12-May-1985 1985 Local Registered Mail from Diba to Ibri   (1)
10-Jul-1985 1985 Registered Mail from Ibra to India   (1)
15-Aug-1985 1985 Registered Local Mail from Barka to Ruwi   (1)
08-Sep-1985 International Day of Eradication of Illiteracy 1985   (1)
22-Sep-1985 1985 First Day Cover: International Youth Year   (1)
10-Oct-1985 1985 Registered Mail from Birka   (1)
03-Nov-1985 1985 First Day Cover: The Gulf Corporation Council 6th Session in Muscat   (1)
06-Nov-1985 6th GCC Summit   (1)
15-Nov-1985 1985 National Day Issue - Souvenir Card   (1)
18-Nov-1985 1985 First Day Cover: 15th National Day   (1)
15-Dec-1985 1985 First Day Cover: Fish of Oman   (1)
15-Dec-1985 1985 First Day Cover: Frankincense Trees in Oman   (1)
05-Jan-1986 1986 First Day Cover: Police Day   (1)
05-Mar-1986 1986 Registered Mail from Al-Buraimi to Malta   (1)
05-Mar-1986 1986 Registered Mail from Buraimi to Malta   (1)
24-Jun-1986 1986 Mail from Suwaiq to USA   (1)
04-Jul-1986 1986 First Day Cover: Centenary Celebrations of the Statue of Liberty   (1)
07-Jul-1986 1986 Registered Local Mail from Masirah to Al-Mudhairib   (1)
09-Aug-1986 1986 First Day Cover: Al Hajj 1406   (1)
24-Oct-1986 1986 First Day Cover: International Year of Peace   (1)
24-Oct-1986 1986: An Imperforated Pair of the 130 Baiza 1986 International Year of Peace   (1)
17-Nov-1986 1986 Registered Local Mail from Khasab to Mudhairab   (1)
26-Nov-1986 1986 Registered Mail from Suwaiq to Netherlands   (1)
01-Dec-1986 1988 Registered Mail from Shinas to Mudhairib   (1)
03-Dec-1986 1986 Mail from Nizwa to Germany   (1)
10-Dec-1986 Armed Forces Day 1986   (1)
15-Dec-1986 1986 Registered Mail from Matrah (Muttrah) to England   (1)
10-Jan-1987 1987 Local Registered Mail from Fanja to Sharqiyah   (1)
19-May-1987 1987 Mail from Muscat to West Germany   (1)
24-Jun-1987 1987 Registered Mail to West Germany   (1)
29-Jul-1987 The strip of 6   (1)
14-Nov-1987 1987 Registered Mail from Suwaiq (Suwaik) to Tehran   (1)
26-Jan-1988 1988 Registered Mail from Salalah CPO to Zimbabwe   (1)
20-May-1988 1988 Registered Mail to Malta   (1)
01-Jun-1988 1988 First Day Cover: Omani Traditional Handicrafts   (1)
01-Aug-1988 1988 Registered Mail from Masna to USA   (1)
27-Aug-1988 Year 1988 Preservation of the Historic City of Sana'a   (1)
01-Nov-1988 1988 First Day Cover: 40th Anniversary of World Health Organization (WHO)   (1)
13-Feb-1989 1989 Registered Mail from Salalah CPO to Malta   (1)
03-Jun-1989 1989 Registered Mail from Suwaiq to Iran   (1)
26-Aug-1989 1989 First Day Cover: Omani Costumes   (1)
12-Dec-1989 1989 Registered Mail from Salalah CPO to West Germany   (1)
30-Apr-1990 1990 First Day Cover: 150th Anniversary of the 1st Omani Envoy visiting the U.S.A   (1)
05-May-1990 1990 Registered Mail from Suwaiq (Suwaik) to USA   (1)
13-Aug-1990 1990 Incoming Mail from Egypt to Khaboora - Return to Sender   (1)
26-Sep-1990 1990 Registered Mail from Sur to USA   (1)
21-Nov-1990 1990 Registered Mail from Fanja to USA   (1)
02-Dec-1990 1990 Registered Mail from Mudhaibi to USA   (1)
07-Feb-1981 National Police Day - 1981   (4)
08-Apr-1981 Commemorative Surcharges - 1981   (4)
14-Oct-1981 Welfare of the Blind - 1981   (1)
16-Oct-1981 World Food Day - 1981   (1)
29-Oct-1981 Al-Hajj 1401 - 1981   (1)
18-Nov-1981 National Day - 1981   (2)
18-Nov-1981 National Day - Imperforated - 1981   (2)
23-Nov-1981 The voyage of Sindbad the Sailor - 1981   (4)
23-Nov-1981 The voyage of Sindbad the Sailor - 1981 - Souvenir Sheet   (1)
11-Dec-1981 Armed Forces Day – 1981   (2)
11-Dec-1981 Armed Forces Day – Imperforated – 1981   (2)
05-Jan-1982 National Police Day - 1982   (2)
01-Jul-1982 The 1982 Definitive Issue   (12)
15-Sep-1982 Arab Palm Tree Day – 1982   (2)
28-Oct-1982 I.T.U. Plenipotentiary Conference - 1982   (1)
06-Nov-1982 Week of Municipalities - 1982   (1)
18-Nov-1982 National Day – 1982   (2)
11-Dec-1982 Armed Forces Day – 1982   (2)
05-Jan-1983 National Police Day - 1983   (1)
17-May-1983 World Communication Year - 1983   (1)
15-Aug-1983 Honeybees in Oman - 1983   (2)
14-Sep-1983 Al-Hajj 1403 - 1983   (1)
15-Nov-1983 Omani Youth Year – 1983   (1)
18-Nov-1983 National Day – 1983   (2)
11-Dec-1983 Armed Forces Day – 1983   (1)
05-Jan-1984 National Police Day - 1984   (1)
09-Mar-1984 7th Arabian Gulf Cup Football Tournament – 1984   (2)
05-Sep-1984 Al-Hajj 1404 - 1984   (1)
18-Nov-1984 National Day – 1984   (2)
05-Dec-1984 16th Conference of Arab Scouts - 1984   (4)
11-Dec-1984 Armed Forces Day – 1984   (1)
05-Jan-1985 National Police Day - 1985   (1)
20-Aug-1985 Al-Hajj 1405- 1985   (1)
22-Sep-1985 International Youth Year - 1985   (2)
22-Sep-1985 Restoration of Jabrin Palace - 1985   (2)
06-Oct-1985 International Symposium of Traditional Music of Oman - 1985   (1)
25-Oct-1985 Child Health Care - 1985   (1)
03-Nov-1985 The 6th Annual GCC Summit meeting in Muscat - 1985   (2)
18-Nov-1985 National Day – 1985   (5)
11-Dec-1985 Armed Forces Day – 1985   (1)
15-Dec-1985 Frankincense Trees in Oman - 1985   (2)
15-Dec-1985 Marine Life of Oman - 1985   (5)
05-Jan-1986 National Police Day - 1986   (1)
04-Jul-1986 Centenary Celebrations of the Statue of Liberty - 1986   (2)
04-Jul-1986 Centenary Celebrations of the Statue of Liberty - 1986 - Souvenir Sheet   (1)
09-Aug-1986 Al-Hajj 1406 - 1986   (1)
20-Aug-1986 17th Arab Scout Camp - 1986   (2)
12-Oct-1986 Inauguration of Sultan Qaboos Sports Complex – 1986   (1)
24-Oct-1986 International Year of Peace - 1986   (1)
24-Oct-1986 International Year of Peace - Imperforated - 1986   (1)
18-Nov-1986 National Day – 1986   (3)
05-Jan-1987 National Police Day - 1987   (1)
21-Mar-1987 Second Arab Gulf Week for Social Work – 1987   (1)
21-Mar-1987 Second Arab Gulf Week for Social Work – Imperforated - 1987   (1)
05-Jun-1987 International Environment Day - 1987   (2)
05-Jun-1987 International Environment Day - Imperforated - 1987   (2)
29-Jul-1987 Al-Hajj 1407 - 1987   (6)
01-Oct-1987 Third Municipality Month - 1987   (1)
01-Oct-1987 Third Municipality Month - Imperforated - 1987   (1)
18-Nov-1987 National Day – 1987   (2)
18-Nov-1987 National Day – Imperforated - 1987   (2)
23-Dec-1987 15th Anniversary of the Royal Omani Amateur Radio Society - 1987   (1)
23-Dec-1987 15th Anniversary of the Royal Omani Amateur Radio Society - Imperforated - 1987   (1)
01-Jun-1988 Omani Traditional Handicrafts - 1988   (4)
01-Jun-1988 Omani Traditional Handicrafts – 1988 – Souvenir Sheet   (1)
17-Sep-1988 Seoul Olympics - 1988   (6)
17-Sep-1988 Seoul Olympics - 1988 - Souvenir Sheet   (1)
01-Nov-1988 WHO 40th Anniversary - 1988   (1)
18-Nov-1988 National Day – 1988   (2)
26-Aug-1989 The 1989 Definitive Issue – Omani Costumes for Women   (6)
26-Aug-1989 The 1989 Definitive Issue – Omani Costumes for Women - Souvenir Sheet   (1)
11-Nov-1989 The 1989 Definitive Issue – Omani Costumes for Men   (4)
11-Nov-1989 The 1989 Definitive Issue – Omani Costumes for Men - Souvenir Sheet   (1)
18-Nov-1989 National Day – 1989   (2)
18-Dec-1989 10th Supreme Council Session of the Arab Co-Operation Council – 1989   (2)
01-Jan-1990 5th Anniversary of the Gulf Investment Corporation - 1990   (2)
24-Mar-1990 40th Anniversary of Gulf Air - 1990   (1)
22-Apr-1990 Symposium on the Oman Ophiolite - 1990   (2)
30-Apr-1990 150th Anniversary of the 1st Omani Envoy visiting the U.S.A. - 1990   (1)
05-May-1990 The Sultan Qaboos Rose - 1990   (1)
18-Nov-1990 National Day – 1990   (2)
18-Nov-1990 National Day – 1990 - Souvenir Sheet   (1)
22-Mar-1981 The League of Arab States - 1945 to 1981   (1)
01-Apr-1981 Ma'asker Al Murtafa Post Office   (1)
01-Jul-1981 Type r5 – Seeb Airport – The Red and Green Registration Label   (1)
11-Oct-1981 carrying a handstamp commemorating the Universal Postal Union on the 9th of October - translation: “9 October 1981 – the twelfth day / Al Ettihad Al Bareedy Al Alamy”. The latter is Arabic for UPU.   (1)
16-Oct-1981 Central Post Office   (1)
02-Dec-1981 Type r5 – Mina Al Fahal – The Red and Green Registration Label   (1)
04-Dec-1981 Type r5 – C.P.O. – The Red and Green Registration Label   (1)
23-Jan-1982 Central Post Office - 2   (1)
20-Jun-1982 Type c6: Mudhaibi Post Office - Oval Registered Date-Stamp   (1)
20-Jun-1982 Type r5 – Al Mudaibi – The Red and Green Registration Label   (1)
30-Jun-1982 Type c6: Muhairab Post Office - Oval Registered Date-Stamp   (1)
30-Jun-1982 Type r3 – Al Mudhairab (Mudhairab) – Larger Dual Language Registration Label with Small Letters   (1)
03-Jul-1982 150b Registration Fee – 1982   (1)
03-Jul-1982 Group IV: The 200b Air Fee to Group IV Destinations – 1982   (1)
03-Jul-1982 The 100b Air Fee to Gulf and Middle East - 1982   (1)
03-Jul-1982 The 130b Air Fee to Europe – 1982   (1)
03-Jul-1982 The 20b Oman Inland Postage Rate – 1982   (1)
03-Jul-1982 The 50b Express Letter Fee – 1982   (1)
03-Jul-1982 Type c6: Badiya Post Office - Oval Registered Date-Stamp   (1)
03-Jul-1982 Type r3 – Bidia – Larger Dual Language Registration Label with Small Letters   (1)
15-Jul-1982 Type c6: Kamil Post Office - Oval Registered Date-Stamp   (1)
15-Jul-1982 Type r5 – Kamil – The Red and Green Registration Label   (1)
27-Jul-1982 Type c6: Taqa Post Office - Oval Registered Date-Stamp   (1)
27-Jul-1982 Type r4 – Taqa – Dual Language Registration Label with fancy “No”   (1)
28-Jul-1982 Type c5: Taqa Post Office - Double Ring Date-Stamp   (1)
28-Jul-1982 Type c6: Mirbat Post Office - Oval Registered Date-Stamp   (1)
28-Jul-1982 Type r3 – Marbat – Larger Dual Language Registration Label with Small Letters   (1)
28-Jul-1982 Type r3 – Muscat – Larger Dual Language Registration Label with Small Letters   (1)
09-Aug-1982 Type r5 – Rostaq (Al-Rustaq) – The Red and Green Registration Label   (1)
10-Aug-1982 Type r3 – Ministerial Complex (Ministerial Comp) – Larger Dual Language Registration Label - INVERTED   (1)
16-Aug-1982 Type c6: Buraimi Post Office - Oval Registered Date-Stamp   (1)
16-Aug-1982 Type r5 – Al Buraimi – The Red and Green Registration Label   (1)
24-Aug-1982 Type c6: INVERTED DATE - Madinat Qaboos Post Office - Oval Registered Date-Stamp   (1)
29-Aug-1982 Type r5 – Sur – The Red and Green Registration Label   (1)
09-Oct-1982 Type c6: Bilad Bani Bu Hussan Post Office - Oval Registered Date-Stamp   (1)
09-Oct-1982 Type r5 – Bani Bu-Hasan – The Red and Green Registration Label   (1)
23-Oct-1982 Type c6: Madinat Qaboos Post Office - Oval Registered Date-Stamp   (1)
15-Nov-1982 Type r5 – Nizwa – The Red and Green Registration Label   (1)
21-Feb-1983 The World Communication Year   (1)
22-Feb-1983 Type c6: Bahli (Bahla) Post Office - Oval Registered Date-Stamp   (1)
22-Feb-1983 Type r5 – Bahla – The Red and Green Registration Label   (1)
26-Feb-1983 Central Post Office - 5   (1)
28-Feb-1983 Central Post Office - Registered   (1)
28-Feb-1983 Type r5 – Muscat – The Red and Green Registration Label   (1)
06-Mar-1983 Type c6: Masna Post Office - Oval Registered Date-Stamp   (1)
06-Mar-1983 Type r3 – Masna (Al-Musnaa) – Larger Dual Language Registration Label   (1)
04-May-1983 Central Post Office - 3   (1)
06-May-1983 Salalah Central Post Office   (1)
05-Jul-1983 Type c6: Khaboora Post Office - Oval Registered Date-Stamp   (1)
05-Jul-1983 Type r5 – Al-Khabura (Khaboora) The Red and Green Registration Label   (1)
13-Aug-1983 Suwaiq Post Office   (1)
02-Oct-1983 A handstamp commemorating the 20th anniversary of the WFP – World Food Program – a part of FAO.   (1)
11-Oct-1983 Type c6: Yanqal Post Office - Oval Registered Date-Stamp   (1)
11-Oct-1983 Type r5 – Yanqal – The Red and Green Registration Label   (1)
22-Nov-1983 Type c6: Khasab Post Office - Oval Registered Date-Stamp   (1)
22-Nov-1983 Type r5 – Khasab – The Red and Green Registration Label   (1)
07-Dec-1983 Central Post Office - 1   (1)
31-Dec-1983 Greater Mutrah Post Office - 1   (1)
21-Jan-1984 Type r5 – Khaburah (Khaboora) The Red and Green Registration Label   (1)
25-Jan-1984 Type r6 – Ibri – The Black and White Registration Label   (1)
04-Mar-1984 Type c6: Saham Post Office - Oval Registered Date-Stamp   (1)
04-Mar-1984 Type r5 – Saham – The Red and Green Registration Label   (1)
17-Mar-1984 Type r6 – Nizwa – The Black and White Registration Label   (1)
10-Apr-1984 Type r5 – Yenkal (Yanqal) – The Red and Green Registration Label   (1)
21-Apr-1984 Muscat Post Office - 2   (1)
09-Jun-1984 Muasker Al Murtafaa Post Office - Registered 1   (1)
09-Jun-1984 Type r6 – Almurtafaa – The Black and White Registration Label   (1)
17-Jun-1984 Type r6 – Muscat – The Black and White Registration Label   (1)
25-Jul-1984 Type c6: Diba Post Office - Oval Registered Date-Stamp   (1)
25-Jul-1984 Type r3 – Diba – Larger Dual Language Registration Label with Small Letters   (1)
09-Oct-1984 Dhank Post Office   (1)
21-Nov-1984 Type c6: Fanja (Fanla) Post Office - Oval Registered Date-Stamp   (1)
21-Nov-1984 Type r5 – Fanja – The Red and Green Registration Label   (1)
26-Nov-1984 Type r6 – Sohar – The Black and White Registration Label   (1)
26-Dec-1984 Type r3 – Taqa – Larger Dual Language Registration Label with Small Letters   (1)
03-Jan-1985 Type c6: Al Buraimi Post Office - Oval Registered Date-Stamp   (1)
03-Jan-1985 Type r5 – Samail – The Red and Green Registration Label   (1)
04-Jan-1985 Greater Mutrah Post Office - 3   (1)
08-Jan-1985 The Arabic Day for Eradication of Illiteracy” cachet.   (1)
12-Jan-1985 Type c6: Bahla Post Office - Oval Registered Date-Stamp   (1)
12-Jan-1985 Type r6 – Bahla – The Black and White Registration Label   (1)
25-Feb-1985 Type c6: Ibra Post Office - Oval Registered Date-Stamp   (1)
25-Feb-1985 Type r6 – Ibra – The Black and White Registration Label   (1)
14-Mar-1985 Type r6 – Quryat (Quriyat) – The Black and White Registration Label   (1)
20-Mar-1985 Matrah Post Office - Registered 1   (1)
20-Mar-1985 Type r6 – Muttrah – The Black and White Registration Label   (1)
26-Mar-1985 The 1980s Red Express Letter Label (Thin EXPRESS)   (1)
27-Mar-1985 Type r5 – Badiya (Bidhya) – The Red and Green Registration Label   (1)
31-Mar-1985 Type c6: Sadah Post Office - Oval Registered Date-Stamp   (1)
31-Mar-1985 Type r6 – Sadah (Sadh) – The Black and White Registration Label   (1)
06-May-1985 Type c6: Suwaiq Post Office - Oval Registered Date-Stamp   (1)
07-May-1985 Type c6: Masirah Post Office - Oval Registered Date-Stamp   (1)
07-May-1985 Type r3 – Masirah – Larger Dual Language Registration Label with Small Letters   (1)
11-May-1985 Type c6: Shinas Post Office - Oval Registered Date-Stamp   (1)
11-May-1985 Type r6 – Shinas – The Black and White Registration Label   (1)
15-Aug-1985 Type c6: Birka - Oval Registered Date-Stamp   (1)
15-Aug-1985 Type r6 – Barka – The Black and White Registration Label   (1)
08-Sep-1985 The “8 September – International Day of Eradication of Illiteracy” cachet.   (1)
06-Nov-1985 A handstamp commemorating the 6th GCC (Gulf Corporation Council) Summit which was held in Oman. Incidentally it was for this event that the Al Bustan Intercontinental Hotel was built and it hosted the summi   (1)
05-Mar-1986 Type r5 – Buraimi – The Red and Green Registration Label   (1)
15-Jun-1986 Type r6 – Mutrah – The Black and White Registration Label   (1)
24-Jun-1986 Type r6 – Al-Suwaiq – The Black and White Registration Label   (1)
17-Nov-1986 Type r6 – Khasab – The Black and White Registration Label   (1)
01-Dec-1986 Type r6x – Shinas – Applied on to the Cover in Manuscript   (1)
10-Dec-1986 The “11th December 1986 – Armed Forces Day” cachet.   (1)
20-Dec-1986 Central Post Office - 6   (1)
10-Jan-1987 Type r6 – Fanja – The Black and White Registration Label   (1)
11-Mar-1987 Greater Mutrah Post Office   (2)
19-May-1987 Muscat Post Office - 1   (1)
08-Sep-1987    (1)
08-Sep-1987 Matrah Branch Post Office - Registered   (1)
25-Jan-1988 Type r6 – Greater Muttrah – The Black and White Registration Label   (1)
27-Aug-1988 1988: Year 1988 Preservation of the Historic City of Sana'a   (1)
27-Aug-1988 Ruwi Post Office - Meter Mark   (1)
27-Aug-1988 The “Year 1988 Preservation of the Historic City of Sana’a” cachet.   (1)
01-Dec-1988 Type r6 – Masna (Al Musanaa) – The Black and White Registration Label   (1)
27-Feb-1989 Type r7 – Muttrah – The Black and White Registration Label   (2)
03-Jun-1989 Type r7 – Al-Suwaik (Suwaiq) – The Black and White Registration Label   (1)
21-Oct-1989 Matrah Post Office   (1)
01-Feb-1990 The 50b Oman Inland Postage Rate – 1990   (1)
27-Feb-1990 Type r6 – Al Murtafa – The Black and White Registration Label   (1)
05-May-1990 Type r6 – Al Suwaik (Suwaiq) – The Black and White Registration Label   (1)
13-Aug-1990 Type c5: Khadoora - Double Ring Date-Stamp   (1)
26-Sep-1990 Type r6 – Sur – The Black and White Registration Label   (1)
26-Sep-1990 Type r7 – Sur – The Black and White Registration Label   (1)
21-Nov-1990 Type r7 – Fanja – The Black and White Registration Label   (1)
02-Dec-1990 Type r7 – Al-Mudabhi – The Black and White Registration Label   (1)
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