American explorer (1856–1920) best known for his claim as the first man to reach the North Pole; whether or not his expedition actually reached the target destination remains a long-argued point of history. ALS signed “Peary,” one page, 5.5 x 8, American Geographical Society letterhead, no date. Letter of instruction to Mr. Aperti. In full, “If I am not here when you return Mr. Ralphs will give you facilities for work. It will not be necessary for you to say what the frame is for to anyone.” Accompanied by a certificate of authenticity from PASS-CO. In fine condition, with light creasing to top left corner, light diagonal crease through signature, and a light pencil remnant at top. R&R COA.