Hi All,  I'm trying to locate a diagram that was drawn in July 1974
by C. Drummond.  It's a tubing diagram for a Welte-Mignon (Green Roll)
system, which was taken from a 1925 Steinway grand.  It measures 23" x
17" and has the tubing diagram on one side and the stack block diagram
on the other side.

The copy of the diagram I have got damaged, making a portion of it
impossible to read.  Basically, I only need to see the portion of the
drawing around "Section 'E' - ReRoll Valve for Air Motor", and the
corresponding section on the flip side around the regulator assembly.

The diagram was sold by Player Piano Co. until 1981 and was listed in
their catalog as D-22.  According to Durrell, the diagrams were
purchased from Frank Adams, whom I've been informed is not well.

As always, I appreciate all help and am willing to pay for a copy.

Musically,
John A Tuttle
Player-Care.com
Brick, New Jersey, USA