English, circa 1860, with the lid of 1 engraved in copperplate script 'Perigals Kinescope, Velocities equal producing 1st & 2nd Bicirdoids, Elliott bros, London' and engraved to the back 'Elliott Bros, 30 Strand London', the second engraved to the back 'Elliott Bros, 30 Strand London' and the other un marked, all complete with geared tops and silvered reflective balls on geared rotating mechanisms, with single winding handle - as the handle is turned clockwise or anticlockwise the balls spin to show various pattern of motion.
For similar instruments see:
https://www.cinematheque.fr/fr/catalogues/appareils/collection/appareil-pour-les-experiences-doptique-et-de-cinematique-boite-d-ap-94-1054.html
Sold for £1,500
Result plus buyers premium
English, circa 1860, with the lid of 1 engraved in copperplate script 'Perigals Kinescope, Velocities equal producing 1st & 2nd Bicirdoids, Elliott bros, London' and engraved to the back 'Elliott Bros, 30 Strand London', the second engraved to the back 'Elliott Bros, 30 Strand London' and the other un marked, all complete with geared tops and silvered reflective balls on geared rotating mechanisms, with single winding handle - as the handle is turned clockwise or anticlockwise the balls spin to show various pattern of motion.
For similar instruments see:
https://www.cinematheque.fr/fr/catalogues/appareils/collection/appareil-pour-les-experiences-doptique-et-de-cinematique-boite-d-ap-94-1054.html
Auction: Fine Instruments of Science & Medicine, 29th Nov, 2023