Scottish-born scientist and inventor (1847–1922) who conceived the telephone, founded the Bell Telephone Company, and invented various devices for aiding the deaf. Ink signature, “Alexander Graham Bell, 1336 19th St., Washington D.C., January 24th 1889,” on an off-white 5 x 3 card. Mild soiling, and toning to corners, otherwise fine condition. RRAuction COA.