Pianotech

Mr Grau left his name on the side of a key stick after reconditioning my model O in 1987. I thought it would be nice to say hello, and let him know that the piano is still in excellent condition, apart from the action and damper system (which are overdue for rebuilding anyway).

Also written on the key is "Baldwin Piano Co., Cincinnati, Ohio". Does this mean that they serviced this piano before Mr Grau? Or sold it new or pre-owned

I don't have a sure answer just some thoughts.

I usually associate "Model O" with Steinway -- is your piano a Baldwin or a Steinway?  I'm not aware of Baldwin ever reconditioning Steinways at their factory, but it's certainly possible such a thing could have happened...