[ Was "Baldwin Manualo With 4-hole Roll Tracking System"

Perhaps I was unclear in my first post, for this I do apologize.
When I make reference to two sets of tracking holes, I mean two full
register sets of tracking holes in the tracking bar, running the full
length.  The upper set appear to have fewer holes and different spacing
than the lower set does.  I assume then that this was set up for 65-
and 88-note rolls?  But as I stated previously, there is no mention of
a 65- and 88-note type Manualo player piano.

The source from which I acquired this instrument told me that this
was the first player piano in Lebanon, Oregon, and that his family
purchased it new.  When I pulled the stack it was quite obvious this
piano had never had any major work performed on it before, other than
tuning.  All of the materials -- screw points being unscratched, rubber
tubing as hard and brittle as plastic -- told me I had a real "crème
puff" as far as restorability goes.

There isn't any obvious mechanism for switching between 65- and 88-note
rolls as I would think there would be, but the tracker bar is original
to this stack.

My question is, has anyone else had an instrument like this or seen
one?  Or, does anyone have any reference materials that I could perhaps
get a copy of with regard to restoring this instrument?  I don't have
any experience with the Manualo player mechanism at all.  I can only
say that this is a 2-tier type with no automatic tracker.  It has only
the manual thumbscrew type of track adjuster.   Any help would be
greatly appreciated.

Many thanks in advance,
Jeff Sanders
Dundee, Oregon