John,  Canada Piano Company was a "stencil" brand name.  The real
builder was Williams Piano Company of Oshawa, Ontario.  They were
a fairly big name in Canadian-built pianos of the time _and_ built
a lower quality line for any small company that wanted to sell under
their own name.

The selling dealer was Fletcher Bros. in Vancouver, British Columbia.
The piano was built late 1926.  There is a business listing for Canada
Piano Company in Oshawa but no records or details which confirms to me
that they got their pianos from Williams Piano Company who were also
in Oshawa.

The player action is very basic generic and was most likely purchased
from outside, made by Otto Higel or Sterling Action and Key.  This
exact same action shows up in a lot of different brand pianos in
Canada.  The metal strip in the back of the spool box where the roll
tab hits on rewind should have a maker on it.

The part you question is indeed a combination tracker bar and transposer
which will work quite well as long as the tubing is soft so the tracker
bar can easily move from side to side.  The very small holes will plug up
with dust easily and there are several places that can leak, but again,
proper and careful work and all is fine.

Soft bass and treble was done with a split rail lift and finger buttons.
This action is very nice to rebuild.  It is perfect for a person who is
doing their first player.

Any specific questions please feel free to message me.

As ever,
Ken Vinen
Aylmer, Ontario, Canada