As surveyed in October & November 1857. Scale of a thousand Yards to the Inch. Joseph Obbard, River Surveyor, H.C.S.V. Spy, 18th Novr. 1857. T. Black, Lithr: 4 Waterloo Street, Calcutta.
Surveyed June 1866. Scale 500 yards to an Inch. F. Laycock, Offg. River Surveyor, Fame R.S.V., July 3, 1866. Manuscript copy by Barlow. Annotated by Barlow: 'Soundings Traced on the Calcutta Lithographed Chart.'
Surveyed by A. Bedford, Dec 1846-47 (Jan). Scale of one Inch to 2000 yards. Manuscript tracing by Barlow, mounted on paper. 'Traced upon the Lithographed Chart published at the Government Lithographic Press, Calcutta.'
Surveyed in October 1855. Scale 1000 yards to an inch. Benjn. Bensley, Mate Pilot, November 23rd 1855. B. Bensley, Lith:. Printed & sold by T. Black, Asiatic Lith: Press, Calcutta. Manuscript additions and annotations by Barlow. Formerly numbered 6.
Surveyed July 1864. Scale 1000 Yards to an inch. F. Laycock, Offg. River Surveyor, Salween S.V., off Calcutta, August 10th 1864. T. Black & Co. Lithrs: Cal:. Annotated by Barlow. Formerly numbered 42.
Surveyed April and May 1865. Scale 2000 Yards to One Inch. F. Laycock, Offg. River Surveyor, "Fame" River Survey Vessel, off Nynan, May 18, 1865. Manuscript copy by Barlow. 'R. F. Barlow reduced from original Scale of 1000 yards to 1 Inch, Aug: 1865.' Annotated by Barlow: 'The outline of the...
Surveyed April and May, 1865. Scale 1000 Yards to an Inch. F. Laycock, Offg. River Surveyor, Fame R.S.V., off Nynan, May 18th 1865. Lithographed. 'The outline of the River Bank has been corrected by a Chart engraved by Walker 1857.' Manuscript additions and annotations by Barlow. Formerly n...
No scale given. Manuscript tracing by Barlow, mounted on paper. 'Traced from an Engraved Chart of Lloyd's Survey (1836).' Inset: Relative Sizes Of The Auckland Island In 1836 And Jany. 1847. No scale given.
Surveyed Dec: 1857, and January & February 1858. Scale 2000 yards to the Inch. Joseph Obbard, River Surveyor, H.C.S.V. Spy, off Calcutta, Feb. 22, 1858. Manuscript copy by Barlow. 'Reduced from the original Scale of 1000 yards to 1 inch.' Further annotated by Barlow. Formerly numbered 18.