The plate on the back indicates it was patented in 1914. It is unique in that the user sets the altitude of his location to obtain an accurate reading. The body of the instrument appears to be copper but there are indications that it was brass plated. It [...]
Posts tagged adjustable
Rare Antique Adjustable Brass Wall Light Curry & Paxton London Optical Optcians
Up for sale is this hard to find Curry & Paxton wall mount adjustable light fixture with a nice x-ray mercury shade , Full brass light stucture , missing the wall mount stucture , The back plate is 9 tall by [...]