1. IOR/X/14240/28D (1) Reference (shelfmark): IOR/X/14240/28D (1) Title: Sheet 28D Chaacha [First Edition] 1921. Registered 1920. Heliozincographed SIO Calcutta. Reg.No.3739. D 20 (D.O.6). 500. Russo-Persian boundary from Russian 5 verst maps G 6 of 1894 and G 7 of 1898. Persia and Russian Turkistan boundaries coloured. Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: 1 item