Bronze muzzle-loading cannon, right rear part

Right rear part of a longitudinal section of a muzzleloader. Ring-shaped grape with a ridge, slightly bent. A hole in the ridge. Vent with a rectangular recess. In the breech (behind the vent) a hole with a groove sloping forward. Foundry mark between the trunnion band and the first break. Coat of arms before the first break and touch-hole. Base of a (broken) dolphin still visible. Above the touch-hole (one piece) a ridge on the barrel. The barrel is not bored along its entire length. Engraved on the barrel (between the first band and touch-hole) the right part of a crowned coat of arms built of leaves and the letter W.