Oman Timline (05-Mar-2026 - 05-Mar-2026)

0.5a
Title: Imperial Inland Postage Rate: 1919 to 1921 Postal Administration: Indian Postal Administration
Earliest Usage: 01-Jan-1919 Latest Usage: 17-Apr-1921
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CENSORSHIP
Title: Type cs1 - Military Censorship at Muscat – The 1913 Revolt and the Treaty of Seeb
Earliest Usage: 20-Sep-1915
Latest Usage: 08-Oct-1920
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REGISTRATION LABEL
Title: Type r7 - The Medium-Sized MUSCAT Registration Hand-Stamp
Earliest Usage: 26-Nov-1919
Latest Usage: 25-Feb-1920
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REGISTRATION LABEL
Title: Type r6 - The Red Manuscript Registration
Earliest Usage: 22-Dec-1915
Latest Usage: 23-Aug-1918
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1a
Title: 1a Universal Penny Postage Scheme to the UK and British Possessions: 1898 to 1918 Postal Administration: Indian Postal Administration
Earliest Usage: 17-Feb-1917 Latest Usage: 01-Jun-1918
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1.5as
Title: 1½as Surface Fee to the UK and Empire Destinations – 1918 to 1921 Postal Administration: Indian Postal Administration
Earliest Usage: 01-Jul-1918 Latest Usage: 31-Mar-1921
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