Silvered and platinized glass (Foucault) in small wooden box Silvered and platinized glass (Foucault) in small wooden box 1857-1868
Newtonian reflecting telescope, made to specifications of Leon Foucault (originally fitted with silver-on-glass mirror) by Secretan, mounted on wooden table stand, Paris, 1857-1868. Accessories include three eye-pieces in fitted leather lined wooden case. Newtonian Reflecting Telescope, by Secretan, 1857-1868 1857-1868