Giambattista Piranesi (1720-1778) Veduta dell' insigne Basilica Vaticana coll' ampio Portico, in adjacent Piazza. (St. Peter's Square as the crow flies). 1748. Etching and burin. 708 x 475 [765 x 540]. Hind 120 (i/iii). Nice proof on strong laid paper, before number 2. Folio number 3 in pen and sepia ink in the upper right corner. Normal median vertical fold, fractured at foot for 10 cm, with old restoration on verso. Left edge irregular, slightly ragged, with small binding tab holes. Good margins. 1st Parisian edition.