Giambattista Piranesi (1720-1778 )Veduta della Piazza della Rotonda. 1751. Etching and burin. 550 x 408 [765 x 540]. Hind 17 (v/vii). Very fine proof on strong laid paper, the price erased, before number 27. Folio number 28 in pen and sepia ink in the upper right corner. Normal median vertical fold with reinforcement at the foot of the verso (tear and small epidermis perceptible on the recto). Large light freckles at the foot of the folio. Left edge irregular, ragged, with small binding tab holes and small misses. Large margins. 1st parisian edition.