Scale: 1:24. Plan showing the section illustrating the method of fitting the iron plate knees for attaching the upper and lower deck beams to the sides for Hebrus (1813) and Granicus (1813), both 36-gun 'fir-built' Frigates building by Mr John Barton at Limehouse. Both ships were built of yellow pine.

Signed by William Rule [Surveyor of the Navy, 1793-1813].