Finally getting around to having a custom 375 Flanged Nitro Express 2 1/2 build on a Longbranch No 4 action that I sourced from a sporterised rifle missing bolt and magazine. I wanted a short five shot magazine and managed to get a Parker Hale 5 shot but then was lucky enough to acquire this custom, engraved magazine. If anyone has a clue about its origin, I would be grateful to hear it.