Scale 1:24. A dyeline copy of a plan, showing the sections, as fitted of the Type 1 Ham class inshore minesweeper Sandringham (1957). The drawing was originally to be used for Frettenham but was reused for Sandringham, both of which were Ham class inshore minesweepers. The plan shows the sections at frames 6, 9, 17 and the transom looking forward. The drawing also shows the sections at frames 26 and 36 looking aft. There is a Hugh Mclean & Sons builder's stamp dated 10 September 1957 along with the Director's signature printed on the plan. A J. Samuel White builder's stamp dated 29 May 1957 is printed on the drawing. The vessel's hull number 'IMS91' is printed on the drawing.