Based on the ideas of Pierre Curie, this electroscope was developed by C. Laborde sometime around 1908 Appareils pour la Mesure de la Radioactivite, d'Apres la Methode Electroscopique. Journal de physique, 4e série, tome VIII, Mars 1909, pages 161-174. Impressive device to measuring radiation of gazes.
You can find a similar device in the Instituto de Tecnologías Físicas y de la Información Leonardo Torres Quevedo. All defects not mentioned but visible in the pictures will be considered as described. If you have any question, do not hesitate to contact me. Thank you for your visit.
The item "ANTIQUE 1915 ELECTROSCOPE PARIS NUCLEAR RADIATION DEVICE CURIE CHENEVEAU LABORDE" is in sale since Monday, August 5, 2019. This item is in the category "Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Other Antique Science Equip". The seller is "liancollect" and is located in Buenos Aires, Buenos Aires. This item can be shipped worldwide.