Model of a 30-Pounder Gun on Deck

Model of a 30-pound cannon on a Marshall carriage on a ship's section with part of the ship's side, incomplete. The wooden barrel, 22.5-23 cm long, is not bored; it has a flat cascabel with a trunnion ring. The carriage consists of two parts. The front piece is fixed with a pivot bolt in heavy brass brackets to the gunport threshold; it is a heavy wooden block with a transverse roller underneath for traversing and a heavy metal trunnion on top on which the barrel rests. The rear carriage, tapering from front to back, consists of two cheeks with four steps each, connected by a sloping trunnion, a rear axle box, and a bolt through both cheeks in the middle. The trunnion blocks are attached to the cheeks at the front. The axle box is attached to the cheeks with brackets. The model has wooden wheels. The tackle is incomplete.