Keywords: Map India and Pakistan 1-250,000 Tile NF 45-7 Calcutta-Howrah and Vicinity (verso) (cropped).jpg en NF 45-7 Calcutta-Howrah and Vicinity verso Tile of the Map India and Pakistan 1 250 000 Series U502 U S Army Map Service 1955 https //www lib utexas edu/maps/ams/india/ http //www lib utexas edu/maps/ams/india/nf-45-07b jpg 1955 en U S Army Map Service PD-USGov Map India and Pakistan 1-250 000 Tile NF 45-7 Calcutta-Howrah and Vicinity verso jpg <gallery>File India and Pakistan AMS index jpg Index Map</gallery> warped 22 5035333/22 6387946 88 2834689/88 4006719 Import by User Slick-o-bot/Maps of India and Pakistan Old maps of Kolkata Old maps of West Bengal U S Army Map Service |