Upon occupying Mafia Island, the British used a handstamp to overprint German East Africa issues for use by British forces in the area. The first issues were overprinted ‘G. R. / MAFIA’, and they can be found with black or blackish-violet ink.
On 17 October 1914, the Commonwealth forces occupying German New Guinea issued their first overprinted stamps.
These British Occupation Issues are German New Guinea registration labels overprinted “G.R.I. / 3d.”, with a new value of 3 Pence.
Between March 1906 and 1911, Germany issued this set of Germania overprints. They feature ‘Marocco’ in a Fraktur font on stamps that are inscribed ‘DEUTSCHES REICH’ with a watermark.
Germany issued this set of Germania overprints on 1 October 1905. The overprints saw a switch to stamps with a ‘Deutsches Reich’ imprint rather than the previous ‘REICHSPOST’.
This issue is known as the “Eintagsfliege” (mayfly) issue, as it was only sold at the postal counter on its day of issue, 30 September 1905.