Directorate of Military Survey. Manuscript and typescript notes of history c.1910-1959 of concurrent editions of 1:253,440 and 1:250,000 maps of GSGS 3919 (K501) area north-west of India, including Survey of India maps, series ID 9002, IDR 9002, XDR 9002, PID 9002, MDR 9002 and MDR 503, and AMS...
Thomas Jefferys. MDCCLXVIII [1768]. The Second Edition. Robt. Sayer and Thos. Jefferys, 30 April 1768. [Various scales, including 200] British Statute Miles 69½ to a Degree [=4.86 inches (approximately 1:2,610,000)].