Giambattista Piranesi (1720-1778) The Drawbridge. (Carceri d'invenzione, pl. VII). 1749-1760. etching and burin. 412 x 557. Robison 33 (v/vi). Fine proof on 19th-century cream laid paper, before no. 355. Restoration to the left edge of the folio. Freckles and traces of oxidation. Two remnants of adhesive at head on verso. Horizontal median fold barely perceptible, with small thinning visible through transparency on verso. Margins reduced to approx. 1 cm.