Set of three measuring devices: a brass electroscope in its - Lot 253

Lot n° 253
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Estimation :
50 - 80 EUR
Set of three measuring devices: a brass electroscope in its - Lot 253
Set of three measuring devices: a brass electroscope in its wooden carrying case (H. 12.5 cm) , a photometer model "filmograph" and a HOLO-ELECTRON, construction of electro-medical devices, high frequency, violet & ultra-violet rays, infra-red, solar lamps and sprays. (sold as is)
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