Richard Lovett, of the Cathedral Church of Worcester, Author of Philosophical Essays in Three Parts.. / I. Wright Pinxt. ; R. Hancock fecit. - [2nd state]. - [London]: [W Richardson, 1766]. - 1 print: mezzotint, 39x30cm, trimmed platemark 34.8x25.6cm. - After an oil once attributed to Joseph Wright of Derby, 1766-, now in the Museum of History of Science Oxford. - Portrait, TQL seated to R, of Richard Lovett (1692-1780), author of works on electricity; at table with electrical machine (cylinder triboelectric generator and other electrical apparatus) and volume of his Philosophical Essays (1766), charts and globe alongside