I converted a wonderful North Tonawanda barrel organ to play
Wurlitzer paper rolls with no modifications to the organ.  I installed
a "mounting board" to the original barrel support, using a single #6
(small) screw at each end, and mounted all the Wurlitzer gear to this
added board.  A split wooden pulley drives the roll frame, or could use
electric.  The organ can be returned to its original configuration with
two barrels in less than an hour.

Alan Erb