[ Ronald Hardwig wrote in 161207 MMDigest --

> It looks as if the finish has been removed, but they also took
> off the red hue that is normally within the rosewood.  ...
> I have always used a polyurethane finish.

Hi,  I wonder if this is actually a rosewood piano.  Searching on Google, I saw an ad for a similar "rosewood piano".  It was also offered in ebony.  That makes me think that the actual wood used on this piano was neither rosewood nor ebony.

I suspect that the piano was made from some other wood and then either grained to look like rosewood or painted black to look like ebony.  If that is so, then the person who removed the finish also removed the "rosewood".

It's easy enough to tell, even if you have a question about wood identification.  Find an inconspicuous spot where there is bare wood and sand it a little.  Rosewood has a very distinct, sweet aroma.

If this piano is actually rosewood or rosewood veneer, the proper finish would be shellac.  Polyurethane is the appropriate finish for surfaces like floors.

Regards,
Craig Smith