Scale 1:11,400 (E 12°26ʹ36ʺ--E 12°31ʹ12ʺ/N 41°54ʹ57ʺ--E 41°52ʹ20ʺ).
Shows "Avanzi di costruzioni antiche." Also shows Vatican City. Removed from an unknown resource. Originally printed on three long, narrow sheets, then glued together to form a single sheet. Printed on thin paper. Overlaid with numbered grid.