Famous Americans - Inventors

The Famous Americans series is comprised of 35 stamps, issued in 7 groups of 5 stamps each, printed by the rotary process in sheets of 70. Each individual stamp is 0.85 by 0.98 inch in dimensions, arranged vertically.

The central subjects of the inventor's group are distinguished from the preceding issues by the use of larger portraits without frames. The portraits are placed to the right of the center of the stamp and extend from the bottom edge to the top of the stamp except for the narrow space required for the inscription reading "United States Postage" in white Gothic. In the lower left corner of the stamp is a large rectangular panel arranged vertically with white ground, containing at the top the name of the inventor in dark Gothic lettering. At the bottom of the panel, arranged in the form of a monogram, is a reproduction of a cogwheel, uplifted wings, and lightning flash, symbols of power, flight, and electricity. Between the monogram and the name of the inventor appears the denomination numeral.

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