Oman Timline (01-Jan-1931 - 31-Dec-1940)

2as
Title: 2as Foreign Postcard Surface Rate Postal Administration: Indian Postal Administration
Earliest Usage: 15-Dec-1931 Latest Usage: 31-Mar-1948
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1.5as
Title: 1.5as Printed Matter Rate Postal Administration: Indian Postal Administration
Earliest Usage: 01-Jan-1932 Latest Usage: 31-Mar-1948
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9ps
Title: Book Packet Rates (Book Post / Printed Matter) – 1934 Postal Administration: Indian Postal Administration
Earliest Usage: 01-Apr-1934 Latest Usage: 31-Mar-1937
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6ps
Title: Book Packet Rates (Book Post / Printed Matter) – 1937 Postal Administration: Indian Postal Administration
Earliest Usage: 01-Apr-1937 Latest Usage: 30-Nov-1940
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9ps
Title: Book Packet Rates (Book Post / Printed Matter) – 1940 Postal Administration: Indian Postal Administration
Earliest Usage: 01-Dec-1940 Latest Usage: 31-Mar-1948
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2as
Title: 2as Air Fee to Egypt Postal Administration: Indian Postal Administration
Earliest Usage: 01-Sep-1937 Latest Usage: 01-Sep-1939
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6as
Title: 6as Air Fee to Egypt Postal Administration: Indian Postal Administration
Earliest Usage: 02-Sep-1939 Latest Usage: 31-Aug-1940
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4as
Title: 4as Air Fee to Egypt Postal Administration: Indian Postal Administration
Earliest Usage: 01-Sep-1940 Latest Usage: 31-Mar-1948
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