Coal tax boundary marker no.73, Thorney Mill Road bridge over Bigley Ditch
Introduction
The photograph on this page of Coal tax boundary marker no.73, Thorney Mill Road bridge over Bigley Ditch by Mike Quinn as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Mike Quinn Taken: 5 Jul 2017
The location of this boundary marker is shown in Image and Image There are over 200 coal tax boundary markers located around London, only 5 (extant) of which are small square plates; these are located in the parapets of road bridges. Most of the boundary markers are 3 ft high white-painted bollards http://www.geograph.org.uk/search.php?i=86542993&page=1 . The posts were erected under the Coal and Wine Duties (Continuation) Act of 1861 to mark the points at which duty had to be paid on coal being transported to London. The boundary was set at that of the Metropolitan Police District, and the resulting revenue was used by the Corporation of the City of London to fund public works. For further info see http://www.coaldutyposts.org.uk/cityposts.html .
