Published as the act directs November 9th 1780 by H. Gregory No. 148 Leadenhall Street, London. No scale given. Manuscript tracing by Barlow, mounted on paper.
Surveyed in March 1856. Scale One thousand yards to an inch. Joseph Obbard, River Surveyor, Beacon S.V., 28th March 1856. T. Black, Asiatic Lith: Press, No. 4 Waterloo St., Calcutta. Formerly numbered 1.
Scale of [16] Duytsche Mylen 15 voor 1 Graadt [= 4.73"]. Manuscript tracing by Barlow, mounted on paper. Annotated by Barlow: 'This is "No. 258" at page 91 of the official catalogue at the India Office, printed in 1878. The original (copy) is on tracing paper, with between 80 and 90 more Maps, ...
Published as the Act directs Nov. 9 1780 by H. Gregory, 148 Leadenhall Street, London. No scale given. Manuscript copy by Barlow. 'Transcribed by R. F. Barlow. Jany. 9 1841.'
As surveyed in Season 1861/62. Scale 1000 [i.e. 2000] yards to the Inch. Joseph Obbard, River Surveyor, Salween S.V., off Calcutta, 10th March 1862. Manuscript copy, with extension slip, by Barlow. 'Reduced copy: one half the Original Scale.' Formerly numbered 3.
No scale given. Printed note subscribed 'P. G. Sinclair, S.B.P.' Lithographed by T. Black, Asiatic Lith: Press, Calcutta. H. M. Smith Scripsit. Title added in pencil. Annotated by Barlow: 'Survey believed to have been made in 1817, according to a remark by Capt. Lloyd.'
Surveyed Feb: 1868. By Mr. F. Laycock, River Surveyor. F. Laycock, River Surveyor, Fame R.S.V., Feb. 25, 1868. Scale 1 Inch to 2000 yards. Manuscript copy by Barlow. 'Reduced from the Lithographed Calcutta copy of the Survey, May 1868.' Manuscript additions by Barlow. Formerly numbered 21.
Surveyed and Buoyed off, April 1843. By A. Bedford, H.C.M. No scale given. Manuscript tracing by Barlow. Annotated by Barlow: 'Never lithographed nor engraved.'