Related Object Info
condensing lens for a hand-held Becquerel phosphoroscope
Glass condensing lens set in wide end of a brass cylinder with triangular aperture at the narrow end. Could go with 1997-1-1527, which is the actual hand-held phosphoroscope made by Duboscq. In size, shape, and the character of the metalwork it very closely resembles the lens end of DW0152, another (complete) hand-held phosphoroscope. There are four rivet holes around the aperture at the narrow end, one of which still has the rivet in it, suggesting that this piece had broken off.
