EditorialJohn Hall, Pope Clement the Ninth, Houghton Gallery, John Hall (British, Wivenhoe, Essex 17391797 London), After Carlo Maratti (Italian, Camerano 16251713 Rome), Pope Clement IX, 1780, Engraving and etching, Sheet: 20 1/2 ? 14 3/8 in. (52 ? 36.5 cm), P...