The compass has a 7-inch card and when mounted extends about 11 inches from the bulkhead.
One of the challenges facing marine architects and designers is the lack of space for essential navigation aids and equipment at the helm or in a cockpit.
This vintage compass, by Ritchie of Boston for Negus c.1935, is mounted in a heavy bronze yoke which fits into matching brackets designed to be attached to the bulkhead by the ship's helm. This allows it to be unshipped and s ecured below, allowing more space when in port. The compass has a 7-inch card and when mounted extends about 11 inches from the bulkhead. The compass still has most of its fluid and works well though I would recommend servicing by a competent adjuster if its to return to sea as a primary compass.
This heavily-built instrument spent many years at sea aboard a 65-foot schooner yacht.