Six items: matte-finish 4.75 x 6.5 photo of Christiaan Barnard, signed in the lower border in blue ink; TLS by John H. Gibbon, Jr., February 5, 1962, transmitting an unsigned photo; two TLSs by Michael DeBakey, 1964 and 1987, responding to admirers; a TLS by Adrian Kantrowitz, dated 1966, which reads, in part: “We are now only making the very first steps into the field of auxiliary hearts and artificial hearts”; and a 1967 TLS by Arthur Kantrowitz. In overall fine condition. Accompanied by the original mailing envelope for one of the Kantrowitz letters. RR Auction COA.