The Gavioli organ that was in the Heller hoard was on PTC #15 in its
early years.  I believe it was removed from that carousel circa 1923,
when Heller had acquired the organ.

The organ has been restored to playing condition and is in the hands
of a collector in Europe.  This Gavioli organ is an 89-key model and
I believe it is the G4 scale.  This organ is probably similar to the
G4 scale 89-key Gavioli organ owned by Bill Edgerton.

By the way, I had a chance to listen to Bill Edgerton's 89-key Gavioli
a few weeks ago, and it is a magnificent sounding organ.  It was
restored from a derelict condition.  It is still playing the original
style 89-key Gavioli book music.  The organ has approximately 370
pipes.

Jeff Alterman