Hi.  I have the Vestal Press reprint for the Welte Mignon (Licensee)
player action which includes tubing charts for both the grand and the
upright installations.  It's a slick paper reprint with three very dark
photos of (1) the grand underside in which the key bed has been cut out
for the stack, (2) the grand underside with the stack mounted below the
key bed, and (3) the upright.

More importantly the reprint also contains a one page drawing and
explanation of the Welte Mignon (Licensee) expression device and two
fold out pages of the tubing charts with isometric drawings of the
components with notes and tubing specs.

Wade Newton
Fort Worth, Texas