1. IOR/X/14672/53 Reference (shelfmark): IOR/X/14672/53 Title: Sheet 53 [Delhi First Edition] 1915, reprinted 1923. Compiled HQ Office SI. Published 1915. Registered 1912. Engraved and Heliozincographed SIO Calcutta. Reg.No.1820 D.12. S.I.–1200–'20–250'23. Unlayered. Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: 1 item
2. IOR/X/14672/77 Reference (shelfmark): IOR/X/14672/77 Title: Sheet 77 Lhasa Second (Revised) Edition 1927. Revised edition (considerable changes) 2nd 1927. Revised edition published 1927. Previous edition 1st 1919. Heliozincographed SIO Calcutta. Reg.No.3077 D 27 (D.O.2.) 750. Unlayered. Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: 1 item
3. IOR/X/14672/78 Reference (shelfmark): IOR/X/14672/78 Title: Sheet 78 Darjeeling Fifth (Revised) Edition 1931, reprinted 1937. 5th (Revised) [edition] 1931. Revised edition published 1931. Previous editions 1st 1917, 2nd 1925, 3rd 1927, 4th 1928. Registered 1923. Heliozincographed SIO Calcutta. Reg.No.3023. D.23. (D.O.1–3∕2M). 1000–250'37. Nepal-Tibet boundary undemarcated, alignment pointed out on the ground by Nepalese officials, carries no sanction or authority of GI. Unlayered. Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: 1 item