Scale 1:48. Plan showing the inboard profile plan as proposed and approved for Diamond (1774), Orpheus (1774), both 32-gun, Fifth Rate Frigates. Annotation in top right: "A Copy was sent to Messers Bernard & Turner, at Harwich for fitting the Orppheus, 15th Oct 1771. Another was sent to Mr Hodgson at Hull for fitting the Diamond, 17th Oct 1771." At top in pencil "N.B. Bowspirit spotted in Pencil is as the Diamond was fitted."