The Kindoll" Hand-Engraved Masonic Firing Glass – The Craftsman's Apron
Firing glass | possibly British | The Metropolitan Museum of Art
c. 1765 Firing Glass with Beehive Foot & Ogee Bowl : Whitehall Antiques | Ruby Lane
Glass Dictionary | Corning Museum of Glass
Sold Price: Three 19th century Masonic firing glasses all with engraved square and compass motif, comprising a waisted tumbler style glass, - June 2, 0120 10:00 AM BST
Masonic Firing Glass Engraved Crystal Antique Heavy | Etsy