Hello all,  I have here a Duo-Art piano that has been refinished more
than once in its life.  There is no decal or name left and I would love
to know how to find out what make it actually was.  Any ideas?

It is electric only and it has a transposer bar.  It has the American
fallboard and keycover/lid.  The top lid can lock as well as the
keylid.  The vacuum pump is not the square type with the cast-iron front
and flywheel but rather a much smaller version of the steamboat type
pump.

So, is the piano a Weber, Aeolian, Steck, other?  How can I find out?

Regards,
Bernt Damm
Sydney