1 page, 4to, matted and framed. Unexamined out of frame." /> WHITNEY, Eli (1765-1825), <I>Inventor</I>. Autograph letter signed ("Eli Whitney") to Secretary of War John C. Calhoun, New Haven, [CT], 16 July 1823. <I>1 page, 4to, matted and framed.</I> Unexamined out of frame. | Christie's