Influences on overprinting stamps of Great Britain
The main influences on the adoption of overprinted stamps were as shown below.
- Nauru, a German colony occupied by the Australians in 1914.
- "Additional Medicine Duty" revenue overprints when taxes were raised during World War I.
- Channel Islands essays of German occupation overprints for use in Guernsey and Jersey.
- Salonica field post office in the "Levant" area.
- Mafeking siege issues.
- Overprints on letter seals used by the British army in Egypt.
b) Temporary issues until a designated series was available
c) Contractual arrangements to operate post offices in other countries
- Turkish empire ("Levant") - with a break in World War I when Turkey was allied to the Central Powers.
d) overprints to change or reinforce the use of stamps
- Tidal Testing postage
page last updated: 22 June 2006
gbos: GB Overprints Society