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A rare letter preserved in the Alexander Collection testifies to the way the French post office operated in the mid-19th century along the shores of the Eastern Mediterranean, while relying on French shipping lines.

On September 17, 1933, the Yugoslav Post Office issued a postage Tax stamp with a face value of 50 pras. The proceeds from the sale of the stamp were dedicated to the Red Cross, and all letter senders in the week between September 17 and 23 ("Red Cross Week") were required to stick the tax stamp on the envelope in addition to the normal shipping fees.

The illustration of the buildings of the Hebrew University represents the development of the institution over the years of its operation.

Security paper, incorporating silk threads, used to print British stamps in 1847. The paper was developed in Britain by John Dickinson, and is named after him. Similar types of paper with silk threads were used at the same time to print German and Swiss stamps.

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.