cover 1896 (18 Dec.) envelope to San Francisco, 1899 (6 Apr.) ½d. stationery card to Germany, 1900 (12 Jan.) envelope and Turkish picture postcard from the same correspondence to New York, both showing oval "AGENCE GENERALE/DE L'ANCRE/CONSTANTINOPLE" cachet in blue, each bearing unoverprinted ½d. vermilion and tied by "BRITISH POST OFFICE/CONSTANTINOPLE" c.d.s. (two different sizes); some minor faults. (4)