Oman Timline (01-Jan-1971 - 31-Dec-1980)

COVER
Date: 19-Jan-1977
Cover Type: Airmail
COVER
Date: 22-Jan-1977
Cover Type: Airmail
COVER
Title: 1977 Registered Mail from Salalah to USA
Date: 22-Jan-1977
Cover Type: Commercial
Stamps
Title: 1977 Registered Mail from Salalah to USA
COVER
Title: 1977 Mail from Central P.O. to Switzerland
Date: 22-Jan-1977
Cover Type: Commercial
Stamps
Title: 1977 Mail from Central P.O. to Switzerland
COVER
Title: 1977 Mail from Central P.O. to England - Ministerial Complex Date Omitted
Date: 22-Jan-1977
Cover Type: Commercial
Stamps
Title: 1977 Mail from Central P.O. to England - Ministerial Complex Date Omitted
COVER
Title: 1977 Local Mail from Samail to Ruwi
Date: 30-Jan-1977
Cover Type: Commercial
Stamps
Title: 1977 Local Mail from Samail to Ruwi
COVER
Title: 1977 Local Mail from Nizwa to Ruwi
Date: 30-Jan-1977
Cover Type: Commercial
Stamps
Title: 1977 Local Mail from Nizwa to Ruwi
COVER
Title: 1977 Registered Mail from Central Post Office (Muscat) to England
Date: 21-Feb-1977
Cover Type: Commercial
Stamps
Title: 1977 Registered Mail from Central Post Office (Muscat) to England
COVER
Date: 20-Mar-1977
Cover Type: Airmail
COVER
Date: 12-Apr-1977
Cover Type: First Day Cover
COVER
Title: 1977 Registered Mail from Muscat to England
Date: 23-Apr-1977
Cover Type: Commercial
Stamps
Title: 1977 Registered Mail from Muscat to England
COVER
Title: 1977 Registered Mail from Salalah to USA
Date: 01-May-1977
Cover Type:
Stamps
Title: 1977 Registered Mail from Salalah to USA
COVER
Title: 1977 Local Mail from Sur to Ruwi
Date: 15-May-1977
Cover Type: Commercial
Stamps
Title: 1977 Local Mail from Sur to Ruwi
COVER
Title: 1977 Local Mail from Al-Buraimi to Ruwi
Date: 18-May-1977
Cover Type: Commercial
Stamps
Title: 1977 Local Mail from Al-Buraimi to Ruwi
COVER
Title: 1977 Local Mail from Shinas to Ruwi
Date: 21-May-1977
Cover Type: Commercial
Stamps
Title: 1977 Local Mail from Shinas to Ruwi