This is actually a picture of the printing mechanism for another machine of his, called the Difference Engine No. 2, which he never built, but which the Science Museum did build in the '80s and '90s.
Ovo je fotografija mehanizma pisača za njegov drugi stroj, nazvan Difference Engine br. 2, koji nikada nije napravio, ali koji je Znanstveni muzej napravio u 80-ima i 90-ima.