I recently saw a listing of a few Aeolian organs in your Digest
[140107 MMDigest].  The author was requesting information on these,
as well as other organs possibly located in the UK.

In the book, "The Aeolian Pipe Organ And Its Music," by Rollin
Smith, published by The Organ Historical Society, is a listing of
approximately 148 instruments located therein.  Some information is
given as to the disposition of instruments as of the publication date
of 1998.  Possibly this is information the person is looking for.

Harry Spring
Kerrville, Texas, USA