1925-1926 Flat Plate #622-623

1925-1926 Flat Plate Printing #622-623
The 13¢ Benjamin Harrison issue, one of two additions to the definitive series, paid the cost of postage plus the fee for insured mail with a single stamp. The 17¢ denomination, the first appearance of President Woodrow Wilson on a stamp, paid postage plus the fee for registered mail. Both were printed on the flat plate press.

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