Model of Two Different Designs for the Gun Position on the Bow.Sketchy block model and water line model of a fore ship with bom cannon on a swivel, incomplete. It has lacking a shipment, bowsprit and crane beams, and a roasting spindle is applied. The swivel sleeve cannon rotates in the deck inserted brass turning races: a large circle in the middle, and small turning races on either side of the bow. Vague scratches and nails in the deck indicate other possible rail positions. The vault holes are indicated with black paint. They are located below deck and the anchorette chains or streams must be led to the roasting spindle on the upper deck by tubes; A black rectangle on the upper deck probably gives the position where the sleeve comes up.