John, it has always been my understanding that part of the deal Aeolian made with Mason & Hamlin regarding the buyout was that Aeolian would no longer be able to cast the word "Boston" into the plate. (Found adjacent to the high treble section with the name M&H). Therefore if the word Boston does not appear you probably have an Aeolian piano and vice-versa. Also every Aeolian M&H that I have seen has a decal on the inner rim on the long side near the front empire hinge that says; ironically; American Craftsmanship or some such. Judging from the condition that you describe the piano has little if any more than wholesale value which last time I let a similar "A" go was around $3500.00- $4500.00, depending largely on the condition of the board. As far as desireability goes, yes it is definately desirable to many rebuilders especially with the dearth of available Steinways. Hope this helps.
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