Surveyed in Novr. 1849. Scale of 1,000 Yards to an Inch. A. Bedford, River Surveyor, Novr. 18th 1849. Lithographed & Sold by T. Black, Asiatic Lithographic Press, Calcutta.
Surveyed in Octr: 1850. Scale of 1000 Yards to an Inch. A. Bedford, River Surveyor, Calcutta, 31st Octr. 1850. Lithographed & Sold by T. Black, Asiatic Lithographic Press, Calcutta.
Surveyed in July 1852. Scale of 1000 yards to an Inch. Arthur Bedford, River Surveyor, August 2nd 1852. Lithographed & Sold by T. Black, Asiatic Lithographic Press, Calcutta.
Surveyed in Decr. 1852. Scale of 1,000 Yards to an Inch. Arthur Bedford, River Surveyor, Decr. 31st 1852. Drawn on Transfer paper by A. Bedford and Lithographed and sold by T. Black, Asiatic Lithographic Press, Calcutta. Endorsed 'Note the Surveys of the Rangafulla for May 1853 and Sept. 1853...
As Surveyed in January 1856. Scale 1000 yards to the Inch. Joseph Obbard, River Surveyor. T. Black, Asiatic Lith: Press, No. 4, Waterloo Street, Calcutta.
As surveyed in May and June 1857. Scale of a thousand Yards to an Inch. Joseph Obbard, River Surveyor, H.C.S.V. Cavery, Diamond Harbour, 14 th June 1857. T. Black, Lithr:, 4 Waterloo St., Calcutta.