The original is in the "Musée des arts et métiers" Museum in Paris. I highly recommend to visit the museum if you ever are in Paris. It's filled with all kind of original scientific and engineering devices. Lavoisier device that split water into hydrogen and oxygen. Jaquard's weaving loom using punching cards. Clément Ader's late 19th century attempt at creating a plane. Blaise Pascal's Mechanical calculator. Prototype metre bar. Old supercomputers...