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Sometimes, the envelopes in the Alexander collection were affixed with stamps that are interesting in their own right, and not just as representing the payment for the shipment. One of the items kept in the collection is an example of the technical errors that were involved in the printing of the stamps used during the British Mandate period, and illustrates the way in which these errors help to locate the original position of the stamp in the complete stamp sheet.
On April 11, 1960, Niger Post issued its first airmail stamps.
Stamp designers often incorporate historical or contemporary photographs into the stamps they design, processing them and adapting them to the stamp layout. This requires them to carefully examine the image they are using to ensure that they are not creating a problem.
A stamp that does not require wetting the adhesive layer applied to its back to make it sticky. The stamp is manufactured attached to special paper that protects the adhesive layer, and to use the stamp, it must be removed from the protective paper and attached to an envelope.
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.
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