Re Burnley Cook's question:-

> ...  all seems okay except the accordion pneumatics are missing.

The dimensions on my Steck half Duo-Art accordion pneumatics, which
I measured before I recovered them, were 1/16", 1/8" 1/4" and 1/2"
respectively, counting from the top down, and they work perfectly.
Hope this helps.

Regards
Jack Scarsbrook, in the UK