Bill Klinger wrote in 030925 MMDigest:

> The roll holder has 4-1/4" aluminum hubs.  The drive end has a short
> hub and a 3/8" diameter recess for a 1/8" flat blade drive.  The other
> end of the shaft is threaded with a collar and spring inside the core,
> and a 3/16" rounded-end pin projecting about 3/8".  This hub presses
> down on the spring and a knurled brass nut holds it in place against
> the end of the roll.  The whole assembly is about 12-1/2" wide, pin
> end to recess hub.

Hi Bill and List,  My guess is a Wurlitzer Concert Organ Roll.

Russ Doering

 [ See the tables of Wurlitzer Residence Organ Rolls near the bottom
 [ of http://mmd.foxtail.com/MMD/MMMedia/identifying.html
 [ -- Robbie