Vintage Photometer ca. 1900
£ 36.00
This is a photometer used for comapring two seperate light sources based off of the Ritchie's design.
The black paint has bubbled in several areas exposing the metal body and the paper round the prism needs replaced.
The black paint has bubbled in several areas exposing the metal body and the paper round the prism needs replaced.
This is a photometer used for comapring two seperate light sources based off of the Ritchie's design.
The black paint has bubbled in several areas exposing the metal body and the paper round the prism needs replaced.