Certificate with manuscript from the Board of Agriculture, c 1793.

Engraving by W C Wilson after Josiah Boydell. Certificate admitting Hugh Percy, Duke of Northumberland to honorary membership of the Board of Agriculture, signed by John Sinclair, president of the board, 18 February 1793. The central circular panel depicts a rural scene. On either side of this is an illustration of a male and a female agricultural worker surrounded by many implements and livestock. Dimensions: 392 mm x 470 mm; dimensions to platemark: 370 mm x 428 mm.