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A day after the declaration of the State of Israel, the Egyptian army crossed the border line of the Sinai Peninsula and invaded the territory of the Land of Israel. The Egyptian force moved along two main axes, one along the coast and the other towards the Hebron mountains with the aim of subduing the newly founded state of Israel. An envelope preserved in the Alexander collection testifies to the Egyptian preparation for war and the fate of the invading army.

On October 14, 1968, Ireland Post began issuing a new series of stamps. These stamps were called "Gerl series", after the designer Heinrich Gerl.

In most cases, postage stamps provide collectors with an aesthetic experience that appeals only to the sense of sight. However, occasionally the philatelic service manages to issue special stamps that cause the collector to expand his or her engagement with the stamp he or she has purchased.

Stamps in which the face value appears twice, in two different currencies. Such stamps were issued in countries that were in the midst of a currency exchange process, and chose to indicate on the stamp the face value according to both the old and new currency.

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.