This is a classic marine barometer by renowned manufacturers, Negretti & Zambra, London, Circa 1935. According to their trade catalogue this barometer had a good qulity movement, fully compensated with a silvered metal dial with deep bevelled edge glass. It has a full 360' open scale reading from 28" to 31".  There are a few minor dings to the side wall but not detracting from the overall appearance. Weighing in at a hefty 2.1kg and larger than average proportions- 200mm diameter overall x 100mm deep, this instrument would make a lovely centrepiece in any room.