I have an Ellington player that I recently acquired for the purpose
of learning how to rebuild the Manualo type player mechanism.  Upon
further inspection and investigation, I discovered that this particular
instrument had two sets of tracking holes in the tracker bar.

I have not found any mention of this type of tracker bar anywhere
I have looked here on the Web and am wondering if this is a fairly
unique feature and not at all common, or perhaps it was such
a non-issue that it was not necessary to mention it in any of the
repair manuals or instructions that were written for the Manualo player
system.  Any help or info would be greatly appreciated.

Thank you in advance for your experience and expertise,

Jeffrey Sanders
Dundee, Oregon