We had many people look at this strange mystery brass instrument and we have all come to the conclusion that it may be a very early tilt measure used on a boat or ship. There are no marking that I can see. It stands 30cms tall and the base is 19 x 13cms. The base doesn’t look to be original to the piece although it has been fixed to it for quite some time and is extremely old. The instrument was most probably fitted directly to the boat and was mounted to the base after salvage. A lovely unusual item. Dolly & Hand shown for scale.