printed in ink (in image) l.l.: Iohn Harris fecit printed in ink (in image) l.r.: S.H. delin printed in ink l.l.: A George on Horseback drawn in Opticks / Place the letter A Close to your Eye / and look on it as you when you Fire a piece / at a mark / Published Jany. (. under y) 1st. (. under st) 1821, by R. H. LAURIE 53 Fleet Street, London.