cover 1837-73 entires (6) from Constantinople including 1857 to Paris bearing Empire imperforate 10c. and 20c. (2) cancelled "3707", 1870 locally addressed bearing Postage Due 15c. black adhesive (unusual), 1873 from Marseille to Constantinople bearing Cérès large figures 80c. cancelled on arrival by two strikes (one complete) of "THEODORIDI & CO./STEAM SHIP AGENTS/CONSTANTINOPLE" oval cachet in blue-green with a complete strike alongside