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…
George III period mahogany cased wall thermometer by Adams of Fleet Street London A well-conceived Georgian wall thermometer in a mahogany case which is perhaps the best I have seen in terms of its cabinetry. The case is mounted on a mahogany backboard graduating to the top into a hanging loop. The front case has a pagoda-style top with a…
Rare Victorian Silver Pocket Thermometer – Late 1890s Swivel design pocket Thermometer This exquisite Victorian pocket thermometer exemplifies the precision and craftsmanship of late 19th to early 20th-century scientific instruments, standing as a rare and beautifully preserved artifact from the golden age of technological innovation.
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…
