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RICHARDSON TANDEM BIPLANE HYDROPLAN ON POTOMAC, APRIL, 1916. GEORGE A. GRAY AT CONTROLS. AT LEFT AND RIGHT ARE RICHARDSON BROTHERS WHO BUILT THE PLANE; 2ND FROM LEFT IS THEIR UNCLE, WHOSE IDEA IT WAS
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Credit lineRICHARDSON TANDEM BIPLANE HYDROPLAN ON POTOMAC, APRIL, 1916. GEORGE A. GRAY AT CONTROLS. AT LEFT AND RIGHT ARE RICHARDSON BROTHERS WHO BUILT THE PLANE; 2ND FROM LEFT IS THEIR UNCLE, WHOSE IDEA IT WAS. 1916-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.