Vide Pownall's treatise on the Study of Antiquities p. 278
8vo. London 1782.
Reference (free text)
T Pownall, A Treatise on the Study of Antiquities, as the Commentary to Historical Learning, Sketching Out a General Line of Research: Also Marking and Explaining Some of the Desiderata (London: J Dodsley, 1782).
Illustrations, figs, A, B, and C, opp. p. 278.