I am working on a Auto-Pleyela player piano of circa 1915, and I have
very little information about it.  Does anyone have a tubing diagram
of the stack?

Most of the existing tubing has disintegrated.  I am able to tube the
note pneumatics to the tracker bar, following what was left of the
existing tubing.  But of course there is much more than individual note
control going on and any help would make it a lot easier to figure out
what goes where.

Thanks.
Ed Bottegal