An original etching by Italian (Rome) master Giovanni Battista Piranesi (1720-1778) titled 'The Smoking Fire'.  This print is the 2nd edition, and it was plate VI from the series Carceri d'Invenzione (fantasy prisons). Originally printed c. 1749, I believe this version dates to about 1760.  The image/plate itself measures approximately 21 1/3" x 15 3/4", and the paper is about 35 1/2" x 24 3/4".  The image itself is in excellent condition, but the paper edges have seen better days.  This would be concealed by the proper mat when the piece is framed.