His Royal Highness William Henry, Duke of Glocester, &c [graphic].[ca. 1771]engTitle etched below image.After a painting by Hugh Douglas Hamilton. For a larger plate after the same painting, see: Catalogue of engraved British portraits preserved in the Department of Prints and Drawings in the British Museum, v. 4, page 496.Date of publication based on that of the larger plate after the same painting, which was published by Robert Sayer in 1771. Cf. British Museum online catalogue, registration no.: 1902,1011.885.Cf. Smith, J.C. British mezzotinto portraits, v. 1, no. 16, page 249.Sheet trimmed within plate mark on bottom edge.Mounted on page 51 of William Bawtree's extra-illustrated copy of Horace Walpole's: A description of the villa of Mr. Horace Walpole. Strawberry Hill : Printed by Thomas Kirgate, 1784. See A.T. Hazen's Bibliography of the Strawberry Hill Press (1973 ed.), no. 30, copy 11.