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 May 1850. Scale of 1,000 Yards to an Inch. A. Bedford, River Surveyor, Calcutta, May 29th 1850. 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. Manuscript additions by Barlow.
Surveyed in Octor: 1850. Scale of 1000 Yards to an Inch. A. Bedford, River Surveyor, Calcutta, Octr. 31st 1850. Lithographed & Sold by T. Black, Asiatic Lithographic Press, Calcutta.
Surveyed in April 1851. Scale of 1000 Yards to an Inch. A. Bedford, River Surveyor, Calcutta, May 12th 1851. Lithographed & Sold by T. Black, Asiatic Lithographic Press, Calcutta. Annotated by Barlow.
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 August 1852. Scale of 1,000 yards to an Inch. Arthur Bedford, River Surveyor, Mud Point, August 12th 1852, Beacon Sg. Vessel. Lithographed. Annotated by Barlow.
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. Manuscript additions by Barlow.