Not on display
Prepared by Turner for his lectures as Professor of Perspective at the Royal Academy, Diagram 66 is one of three views of a prison interior based on an etching from Piranesi’s Prima Parte de Architettura e Prospettiva (1743, pl.2). See especially note to Diagram 65 (Tate D17090; Turner Bequest CXCV 120) for their likely connection with illustrations of the production of shadows and with a lecture manuscript. The third prison is Diagram 66 (Tate D17901; Turner Bequest CXCV 121).
Blank, save for inscription by unknown hands ‘122’ bottom left and ‘CXCV – 128 | POGTF L3(1)’ top right.
Supported by The Samuel H. Kress Foundation