Royal yacht, proposed by John I. Thornycroft & Co. Ltd (1939)
No Scale. Plan shows a set of coloured outboard profile views of a royal yacht underway, proposed by John I. Thornycroft & Co. Ltd (1939). A John I. Thornycroft & Co stamp, dated 6 April 1939, is present on the plan. The title of the plan is "Proposed Royal Yacht Designs A, B, C, D, E, F".