The International Website for People Interested in Netherlands+Philately!
On January first, 1922 the uniform postal identity card was introduced, as agreed on the Congress in Madrid of the Universal Postal Union in 1920. The cards were uniform for all member countries and were produced in Switzerland. In basic they were the same (a …
Postcards and picture postcards which were under-franked were presented in a window envelope to the addressee. This because otherwise there was a chance that the contents were read without paying the postage due. These window envelopes with postage due stamps glued on are not very …
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