BrickArms custom made accessory.
Large Brass Shell Casing #8537 - Retrouvius
What is the Scrap Value for Brass Shells? - Interco
Large calibre markings (The Western Front Museum)
brickarms shell casing (brass)
Large Brass Shell Casing #8537 - Retrouvius
Antique Shell Casing - Canada
Were the howitzer, about 100mm brass shell cases from WW1, reused
Shell Cases Archives - Sally Antiques
Antique Shell Casing - Canada