richard314159: Epidiascope: first light
richard314159: Epidiascope: first light
richard314159: 1000W tungsten bulb
richard314159: Switch after rewiring
richard314159: Switch before rewiring
richard314159: Epidiascope fan
richard314159: Epidiascope from below
richard314159: Ross Epidiascope: open
richard314159: Ross Epidiascope: bulb
richard314159: Ross Epidiascope: epi/dia switch
richard314159: Ross Epidiascope: Type B.E.Model 2
richard314159: Ross Epidiascope: lenses
richard314159: Ross Epidiascope