How to get history of Aeolian/Steinway piano?

[mirage mirage]

Hello. I'm an NBSS graduate of 99 living in Boston. I've been enjoying 
reading bunch of messages on this list for a long time, but it's time for 
me 
to come out because I need some help.
A friend of mine has a Steinway/Duo Art grand (6'5") and he wants to know a 
history of the piano. I have contacted NY Steinway but all they could tell 
was that the piano was sold directly to Aeolian company and they didn't 
know 
who the first owner was.
Is there any way of getting a history of Steinway/Aeolian Duo Art pianos? 
The serial number of the piano is 246601.

Thanks.

Yoshi

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