Series of 1923-25 1 ½¢ Warren Harding
Issue Date: April 4, 1925
First City: Washington, D.C.
Quantity Issued: Unknown
Printed by: Bureau of Engraving and Printing
Printing Method: Flat Plate
Color: Yellow brown
Private Companies Purchased
Imperforates for Vending Machines
Like the Washington-Franklin imperforates, the imperforate stamps of 1923-25 were issued for private companies to use in their vending machines. Since the machines required special perforations, the companies bought the imperforate stamps and applied their own perforations.
U.S. #576 was issued to cover the new third class circular rate. The imperforates were used primarily by the Mail-o-Meter Company in their vending machines.