English, c.1900,in gilt brass, one side a Singer's patent magnetic compass with locking mother-of-pearl dial, the other a compensated aneroid barometer with rotating altimeter bezel, barometer pressure tested and working, in silk lined fitted red Morroco double case, instrument diameter 4.9cm
Sold for £338
Result including buyers premium
English, c.1900,in gilt brass, one side a Singer's patent magnetic compass with locking mother-of-pearl dial, the other a compensated aneroid barometer with rotating altimeter bezel, barometer pressure tested and working, in silk lined fitted red Morroco double case, instrument diameter 4.9cm
Auction: The Collectors Sale, 5th Jan, 2023