US Postage Test Stamps - Strip of 3

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November 28, 2025 21:14
November 28, 2025 21:14
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This is a strip of three United States test stamps. These were produced around the 1960s for post office personnel to test coil vending machines and affixing machines. They were not intended for actual postage and not sold directly to the public. But they are a type of "back of the book" stamps and a great addition to any collection! Please look at the pictures to judge their condition for yourself. Thank you for checking out my listing!