Hi Robbie,  I've been looking at photos of a Cable and Sons player
piano here in Adelaide, South Australia, with a Standard system in it
which has five extra holes each end of the tracker bar, in the section
between the double alignment ears and the transposing slide gap.
Here's a link to the photo:
http://www.gumtree.com.au/s-ad/adelaide-region/keyboards-pianos/pianola-cable-sons/1026786118 

Did Standard make a full expression system?  The owner knows very
little about it, save that it plays common 88-note rolls.  Does
anyone know what rolls would play properly on this, and are they
commonly available?  I have close to 1000 rolls, including some odd
ones but can't think of any which look much like this.

The owner has invited me to go and have a better look, but at $2000
I can't see myself being too tempted!

Many thanks,

Colin Mills
Lobethal, South Australia (another German town in the Adelaide Hills)
colalimills@gmail.com.geentroep [delete ".geentroep" to reply]

 [ A nice piano!  The tracker bar sure looks like it plays Recordo
 [ rolls.  -- Robbie