This is an original copper engraving by Pierre Lombard (1613-1682) It is a portrait of "Anna Comitissa De Bedford", The wife of William the Fifth, Earl of Bedford.
This engraving circa 1660 was a copy of the Van Dyck painting at Woburn Abbey The platemark measures 13 7/8X9 1/2 inches. This engraving is tipped to a thicker mounting sheet with collectors annotations on the bottom.