Fischer Instruments 1434B-22-B Mahogany Wood and Brass Marine Barometer Important Note: Operates to about 3,000 feet altitude (do not order if you live above 3,000 feet). This beautiful nautical instrument is made from the finest materials, and is at home with any marine decor. The back includes a hook for easy hanging. The precision barometer with flange lunette includes a polished brass bezel and solid mahogany wood case.