As Surveyed in October 1860. Scale a thousand yards to an inch. Joseph Obbard, River Surveyor, Salween S.V., off Calcutta, 21st November 1860. T. Black & Co., Lithrs: & Engrs:, Cal:.
As Surveyed in November 1861. Scale of a Thousand Yards to the Inch. Joseph Obbard, River Surveyor, Salween S.V., off Kedgeree, 28th November 1861. T. Black & Co., Lithrs: & Engrs:, Cal:.
Surveyed in October 1848. Scale of 1,000 Yards to an Inch. A. Bedford, River Surveyor, Kedgeree, 24th October 1848. Drawn on Lithographic Paper by A. Bedford. Printed & sold by T. Black, 3 Hare St. Cal.
Surveyed in April 1849. Scale of 1000 Yards to an Inch. A. Bedford, River Surveyor, Diamond Harbour, April 29th 1849. Lithographed & Sold by T. Black, Asiatic Lithographic Press, Calcutta.
Surveyed in Octor. 1849. Scale of 1,000 Yards to an Inch. A. Bedford, River Surveyor. 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.
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.
Scale 1000 Yds to an inch. Surveyed in August 1855. Benjn. Bensley, River Surveyor, August 19th 1855. Drawn on transfer paper & lithographed at The Asiatic Lith: Press, No. 4, Waterloo Street, running along from the N.E. corner of Govt. House.
As Surveyed in season 1861/62. Scale One thousand yards to the Inch. Joseph Obbard, River Surveyor, Salween S.V., off Calcutta, 10th March 1862. Publishd. by T. Black & Co., Lithrs. & Engrs., Cal:, 22d. March 1862.