Advertisement highlighting the bronze medal that the praxinoscope theatre received at the 1878 Exposition Universal in Paris. The praxinoscope theatre was invented by Charles-Emile Reynaud. It was an improvement on his earlier device as it hid the mechanics of operation. It became part of a suite of popular philosophical or optical toys created in the 19th century. Like the praxinoscope theatre, most attempted to create the illusion of movement using a series of static images.