Influential American socialist and labor activist who founded the American Railway Union, the Social Democratic Party of America, and the Industrial Workers of the World. Ink signature, “Cordially yours, Eugene V. Debs, Terre Haute, May 31, 1912,” on an off-white 3.25 x 2.25 card. In very good condition, with mild vertical rippling and scattered toning. RR Auction COA.