The sheet measures 18.5 cm by 13.5 cm, the engraving alone measures 13.4 cm by 9.7 cm.
Reference 5296-47L303 I offer you this original engraving from 1832. Rotterdam Netherlands, after Stanfield. The sheet measures 18.5 cm by 13.5 cm, the engraving alone measures 13.4 cm by 9.7 cm.