A lithograph after an illustration in 'Nautical Magazine' depicting the construction and erection of a safety beacon by Captain Bullock at Goodwin Sands during low tide 10 September 1840. The area was a notoriously dangerous stretch of shoals and sandbars off the east coast of Kent in the Thames Estuary. The shifting sands did not allow for a lighthouse and numerous vessels ran aground on the sands. A man, perhaps the artist, in a black jacket and top hat in the left foreground sits on an upturned basket drawing the men at work.