Steinway double-keyboard piano

[David Boyce]

How interesting to see this instrument restored! And to hear it in action. 
Steinway's one-and-only Emanuel Moor double-keyboard piano.

Several other makers produced one or two of them, and Bosendorfer made 
several.

The history of them is documented in a book by Herbert A. Shead, of which I 
have a copy (The History Of The Emanuel Moor Double Keyboard Piano. Unwin 
Brothers Ltd).  There is a large fold-out diagram of the action of the 
Bechstein version, but nothing of that sort on the Steinway.

Regards,

David.