Gaumont mutoscope

Mutoscope with magnifying lens for observing a roll of photographic images in a 7 x 8 cm tab. Includes cover with lock and key on the left side, for changing the roll. It works with coins. Device patented by the American Hermann Casler in 1894, based on an idea by W.K.L. Dickson, Edison's assistant in the creation of the kinetoscope. The mutoscope was based on the technique of the folioscope, but …