How to identify marks on pewter. British and Irish pewter is often unmarked. If marks are present, they can help in identifying when and where the item was made .There was no central register of pewterers or their marks, so identifying the pewterers phone or tablet when visiting auctions, antiques fairs and antique shops..IDENTIFYING OLD PEWTER TAKES RESEARCH AND SHARP EYE. As seen in The Antique Shoppe Newspaper, March 2009. That pewter dish you spotted in .Pewter Marks Identification | Old Pewter: its Makers and Marks in England, Scotland #fosteriagl#realorrepro Vintage Antique GlMarks Identification..