Close-up of middle section on music: glued on the left side is the mechanism for a music box. If you turn the white knob it actually plays something, although I couldn't figure out what. This is also a good shot of the stamping I did inside each section: you can see on the right side a big F for forte, and then some other music-related words or abbreviations like cresc. and presto. I did this for each section, coming up with appropriate terms for that code.