1915 (23 Oct) registered cover (slightly reduced at right) from Baku to Teheran, franked on reverse with pair of 10k dark blue, violet censor "D.C. G.A.L" handstamp, with arrival pmk, fine example of the maritime post on the Caspian Sea (Image)

Est.$250

1915 (8 Dec) cover franked on back with 3k Arms and 7k Romanov, cancelled by pen, used from Enzeli to Teheran, where it arrived on 13th December, franking apparently not recognized, with large "T" handstamped on front, fine and rare maritime usage on Baku-Enzeli-Teheran line ("Caucase et Mercure Steamship Co") on the Caspian Sea and Russian stamps in Persia (Image)

Est.$1,500