Ukrainian abstract sculptor (1887–1964) who veered away from the traditional form of neo-classical sculpture to implement the use of negative space to depict the human form, allowing for multiple, simultaneous views of his work. ALS in French signed “A. Archipenko,” one page, 8.5 x 11, personal letterhead, February 22, 1963. Archipenko writes to a gallery owner agreeing to meet him. Intersecting folds, one passing through a single letter of the signature, light creasing, some trivial toning, and a pencil notation to the top right corner, otherwise fine condition. RR Auction COA.