The instrument in question is almost certainly an Aeolian 'Aeolienne'
console, i.e., a rolls-only 116-note console controlling what must
have been, and perhaps is still, a substantial pipe organ, certainly
a 3-manual or 4-manual instrument.  That it is an Aeolian instrument
is borne out by the characteristic rocker switches.

The number of divisions is borne out by the five swell pedals, perhaps
controlling crescendo, Great/Choir, Swell, Solo and Echo, or similar.
Elsewhere in the house might still be the organ itself, lurking within
the walls.  There may once also have been a regular key desk for manual
playing.

How sad!  I hope someone rescues it.  Someone with a little more spare
time than myself might even be able to work out which organ it is, from
the opus list; it must be a late one, given the date of the house.

Greetings from the UK,
Rowland Lee