Installing the mainmast on board the 3-masted topsail schooner Sir Winston Churchill (1966) alongside a shed in the East Branch Dock in Tilbury Docks, Essex, during her annual refit. A man, who may be a representative of the builders, is kneeling down, placing a coin on the mast step. One of the shipyard workers is standing next to him. Negatives numbers P50590 to P50594 were taken on the same occasion.