Shooting Interest: A 20th Century silver and glass butt marker in the form of a Purdey 12 bore shotgun cartridge, the silver cover opens to reveal ten numbered (1 to 10) pegs for driven shoots, the silver cover by James Purdey & Sons, Birmingham, 2005; the peg marks by?Hugh Crawshaw, Sheffield, 1997, 0.99 ozt CR: condition good