PAIR OF BLACK ENGRAVINGS AFTER PIRANESI - One shows an antique vase from the Farnese collection, with the dedication: Dedicato all Illma Signora Harriot Walter / In atto d'Ossequio il cavaliere Gio Batta Piranesi D.D.D. Signed lower left: Cavalier Piranesi del e inc - The other a vase decorated with bucranes, with the dedication: Al signor Guglielmo Constable/ Cavalier inglese Amatore delle belle arti /In atto d'Ossequio il cavaliere Gio Batta Piranesi D.D.D Dimensions when viewed : H. 55 x W. 42 cm. Overall dimensions : H. 78 x W. 62 cm.