TLS, one page, 8.5 x 11, personal letterhead, July 19, 1974. Letter to a member of the conservation department of the Metropolitan Museum of Art. In part: “I wish to thank you for all the beautiful masks you cut for the photographs in my show at the Met. I know it was difficult to work with the photographs since some were not squarely cut, and the mounts were not squared. But I think you did an admirable job. Please accept my thanks and appreciation.” In fine condition, with some light toning along top edge. RRAuction COA.