Scale 1:48. A ozatrace copy of a plan showing the sheer lines, longitudinal half breadth and body plan design drawing for the Ton class coastal minesweepers. This drawing has been signed off by John I. Thornycroft dated 31 October 1950, J. Samuel White dated 30 November 1950, Camper & Nicholson dated 4 December 1950, John Morris dated 7 December 1950, Richards Ironworks dated 11 December 1950, Cook, Welton & Gemmell dated 22 December 1950, T, S, Doig dated 28 December 1950 and Goole Shipbuilding dated 2 January 1951. The drawing is also signed off by Wivenhoe Shipyard, Montrose Shipyard dated 30 May 1951 and 12 June 1951, Herd & Mackenzie 15 June 1951, Dorset Yacht Company dated 19 June 1952, Philip & Son 23 June 1952, WM Pickersgill dated 8 July 1952 and Harland & Wolff dated 21 July 1952. This drawing relates to all Ton class minesweepers.