AUTHENTIC ENGRAVING OF YAN DARGENT OF 1868, COMING FROM "LE MAGASIN PITTORESQUE" PAR M. EDOUARD CHARTON, 29 QUAI DES GRANDS AUGUSTINS - PARIS. IT DEPICTS THE "MERCANTE DI VENTAGLI A BOLOGNA" (FROM "L'ARTI PER LA VIA D'ANIBAL CARACI") BY GIUSEPPE MARIA MITELLI, 1660. THE ORIGINAL LITHOGRAPHY WAS CREATED TO BE USED AS A SCREEN (OR "VENTAROLA"). SEE "VENTAGLI ITALIANI" - ALBERTO MILANO, LE VENTOLE INCISE, PAG. 16 AND BERTARELLI 1940 NN. 249-289,360 TAV. IV.