This is a nautical brass barometer portuguese (late 19th century early 20th), weighted stem with engraved steel face supported by gimbal ring and bulkhead mounting, face signed j. M, 16 a 22, r. These barometers were used on old portuguese cod fishing sailboats in greenland. This is an antique item that does show wear and is not in working order… There are some residual pieces of tape on mount… And a small metal piece that fit into the barometer that has come off. Please refer to photos and message me with any questions.