I am researching several facets of the Aeolian residence organ.  If
you own such an instrument, or have access to one, please aid in this
request.  Of primary interest is the Concertola automatic roll-changing
mechanism.  I am seeking information on the following:

1. The number assigned to the Concertola.
2. The Opus number of the organ to which the Concertola was
   first attached.
3. The type of control tablet with the Concertola: toggle switch
   or push button.

In responding to this request, please give all available information,
and identify the current location, if possible, of the Concertola.
Any information that leads to new discoveries will be published.

Bob Taylor