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A special envelope preserved in the Alexander collection bears a stamp issued in the Kingdom of Transjordan as part of a fund-raising campaign for the Palestinian population in the Land of Israel. Similar stamps of low denominations are very common, but stamps of high denominations are almost never found on envelopes.
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On August 5, 1894, the Portuguese colony of Congo (also known as "Cabinda") issued its first stamps.
As part of organizing a stamp exhibition, it is customary to issue philatelic items that will be sold during the exhibition and help fund it. In 1960, the Philatelic Service decided to issue a special commemorative issue that served as historical documentation of the golden age of Prague Jewry.
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A stamp created using a rubber stamp. The use of rubber stamps instead of regular printing processes to produce postage stamps is typical of stamps created under conditions of scarcity or in times of emergency.

An envelope sent on the island of Trinidad documents an attempt by the local charity to collect donations for the Red Cross during World War I. The course of events turned this activity into a philatelic curiosity.