Oman Timline (01-Jan-1961 - 31-Dec-1970)

40b
Title: The 40b Group IV Air Letter Rate – 1968 Postal Administration: Independent Postal Administration
Earliest Usage: 04-Jun-1968 Latest Usage: 31-Mar-1972
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10b
Title: The 10b Inland Air Letter Rate – 1970 Postal Administration: Independent Postal Administration
Earliest Usage: 27-Jun-1970 Latest Usage: 31-Dec-1973
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15b
Title: The 15b Inland Air Letter Rate – 1970 Postal Administration: Independent Postal Administration
Earliest Usage: 27-Jun-1970 Latest Usage: 31-Dec-1973
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25b
Title: The 25b Group I Air Letter Rate – 1970 Postal Administration: Independent Postal Administration
Earliest Usage: 27-Jun-1970 Latest Usage: 31-Dec-1973
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40b
Title: The 40b Group II Air Letter Rate – 1970 Postal Administration: Independent Postal Administration
Earliest Usage: 27-Jun-1970 Latest Usage: 31-Mar-1972
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50b
Title: The 50b Group III & IV Air Letter Rate – 1970 Postal Administration: Independent Postal Administration
Earliest Usage: 27-Jun-1970 Latest Usage: 31-Dec-1973
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REGISTRATION LABEL
Title: Type r1 – Muscat – British Style Registration Label
Earliest Usage: 19-May-1966
Latest Usage: 23-Jul-1972
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CANCELLATION
Title: The c4 – The Parcel Date-Stamp (British Style)
Earliest Usage: 08-Jan-1969
Latest Usage: 08-Jan-1969
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CANCELLATION
Title: Type c6: Muscat Oval Registration Date-Stamp
Earliest Usage: 12-May-1962
Latest Usage: 12-May-1962
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Stamps
Title: Salalah Post Office