Antique Sympiesometer Barometer Victorian J. Graham Liverpool Rosewood Nautical Instrument This finely preserved Victorian sympiesometer was produced by J. Graham of Liverpool, a noted maker of precision scientific and navigational instruments during the 19th century. The sympiesometer was an early form of barometer, widely used aboard ships for measuring atmospheric pressure with greater responsiveness to temperature variation than traditional mercury…
Marine Barometer Victorian Portuguese Antique Portuguese Navy Brass Marine Barometer RN Desterro Lisbon Victorian 97cm This impressive Victorian marine barometer was manufactured in Lisbon for naval or maritime use and bears the marking “R.N. Desterro, Lisbon, Portugal.” Instruments associated with Portuguese naval supply are notably rare survivors, reflecting Portugal’s important maritime heritage and long tradition of navigation and ocean trade.
Antique Georgian Mahogany Stick Barometer J. Whisker York c1815 Mercury Wall Barometer A fine early 19th-century Georgian mahogany stick barometer by J. Whisker of York, dating to circa 1815. The herringbone-veneered mahogany case features boxwood line inlay, a broken pediment, a silvered registered plate with manual vernier adjustment, and an original glazed door. The exposed mercury tube terminates in a…
