A large collection of railway plans were found at the Inveresk railyards in Launceston. While cleaning this particular plan one of the conservators was delighted to find that some of the trees had human faces, were talking to each other, had pipes or were waving their arms. There is also a heart shaped pattern of grass in one of the fields.
[Tasmanian Government Railways] - Plan of the Mersey and Deloraine Railway from Deloraine to the junction with the Latrobe Tramway; includes human caricatures hidden in the tree drawing., by Thomas Midwood - ink drawing on cloth-backed paper. (National Archives of Australia). Click on the images to enlarge.