Inventor best known for the Maxim Gun, the first portable, fully automatic machine gun (1840-1916); he also made contributions to hair-curling irons, the mousetrap, and powered flight. Vintage 3.5 x 5.5 postcard featuring an affixed oval portrait of Maxim, signed below in ink, "Oh!!! Hiram S. Maxim." In fine condition, with light foxing and creasing. Encapsulated in a PSA/DNA authentication holder.
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