1978. unbound. Autographed color crew photo signed on verso by Valari F. Boykovsky and Sigmund Jahn with inscription in blue ink, thanking a technician for his contribution to the flight. The photo depicts Boykovsky standing behind a seated Jahn in full flight gear, smiling and waving. Inscription in Russian. 4to, no place, no date, circa 1978. Very good(+) condition. very good(+).