Image: Map of the Colony of NSW
This early map of the colony was drawn by the Surveyor General, T. L. Mitchell, and engraved by John Carmichael. For a high resolution image, see the National Library of Australia catalogue (link below).
The map is not small, with dimensions of 59.5cm x 111.3cm. It would have taken a very long time to etch the whole map, working in segments.
SOURCE
Image courtesy of the National Library of Australia. Mitchell, Thomas, Sir, 1792-1855 & Carmichael, John, 1803-1857 & Derby, Edward George Geoffrey Smith Stanley, Earl of, 1799-1869. (1884). To the Right Honorable Edward Geoffrey Smith Stanley this map of the Colony of New South Wales [cartographic material] / compiled from actual measurements with the chain & circumferenter, and according to a trigonometrical survey is (with the greatest respect), dedicated by his most obedient humble servant T.L. Mitchell, Surveyor General ; drawn by T.L. Mitchell ; engraved by John Carmichael. http://nla.gov.au/nla.obj-232396607