Here's one I can't find in Bowers.  Has anyone heard of the
"Choralcelo" player organ and piano, made in Boston?  This organ
is used as a backdrop in a catalog of brass band instruments,
photographed at the Ruthmere House Museum in Elkhart, Indiana.

Like some other makes, it has what looks to be a 7-octave lower piano
keyboard and an upper 5-octave organ manual.  There are plenty of stop
tabs, of the modern tilting rocker type, plus four combination pistons
between the manuals.  There is a full pedal clavier, plus three
expression shoes where a player piano's pump pedals would be.

In other words, except that the lower keyboard goes the extra octave
and a third down to "A" like a piano, this looks just like a two-manual
church organ.  The photo doesn't show the right-hand end.

The spool box looks conventional, with a nice ivory tempo scale,
and mounted in it is what seems to be a standard player piano roll,
complete with lyrics stenciled down the right margin.  So either this
beast played regular 88-note rolls (on organ and/or piano?), or the
museum curator or the ad photographer needed a roll on there just for
show, and slapped on the first player roll he could find.  We'd rather
see the tracker bar -- unless this really did play standard piano rolls.

The facade appears to continue at least a little above the spool box,
with wooden grille work backed by fine cloth, much like an Orchestrelle.
The photo cuts off shortly  above the box, so the instrument might go
up to the ceiling.  There could be pipes higher up, but reeds seem more
likely, and a piano action could be lurking behind the grille, too.

This seems like a rare and beautiful instrument.  Too bad I didn't
check out the brass instrument capital of the world, Elkhart, and this
museum in my Chicago days.  Anyone else have any idea what this is?
If requested, I can scan and upload a couple of images.

Mike Knudsen