Founder of the American Federation of Labor who served as that organization's president from 1886 to 1894 and from 1895 until his death in 1924. Fountain pen signature, “Sam’l Gompers,” on an off-white 6 x 2 slip clipped from a letter. Horizontal crease, uniform toning with a block of heavier toning at the right side, scattered staining, torn lower left corner, and a small pencil notation, otherwise very good condition. RRAuction COA.