Wurlitzer did make, or have made, a few roll changers for their
residence organs.  They never really got into the residence organ
field anywhere like Aeolian or Welte.

To establish this particular player, if it is indeed a Wurlitzer
product and not some other player that someone grafted onto the organ,
it would be helpful to know the number of tracker bar holes and the
roll width.  This will identify the player unit.  Also, do the rolls
not carry any identification?

The Wurlitzer residence organ rolls are

 (a) the RJ organ roll, 105 holes;
 (b) the Concert Organ roll, 98 holes;
 (c) the RS organ roll, 98 holes; and the good one is
 (c) the R roll, 165 notes and 16-7/8" wide

The RS roll was the same as the Concert Organ roll, only they left out
hole #1, the sforzando.  Not having seen the Concert Organ roll, my
guess is that the sforzando opened the swell shutters quickly; it
wasn't some sort of collective stop additive device.

Wurlitzer also provided players for their theater organs:  the Style B
player used 88-note home player piano rolls, and the Style C player
played both 88-note pianos rolls and the Concert Organ roll on the
same player.  The Style B was usually a duplex roll player so the busy
organist could switch from "Love Music" to "Chase Music" in a hurry.

Wurlitzer had many roll players and changers in their inventory.
Knowing the roll width would be a big help in identifying the player,
along with the hole count in the tracker bar.

If I recall correctly, the Welte organ at Death Valley Scotty's Castle, which has both the Welte Philharmonic and Wurlitzer R players on it,
also is equipped with a changer for the R rolls, although I have never
seen it personally.

Jim Crank

 [ Thanks for all the data, Jim; I will add it to the web page at
 [ http://mmd.foxtail.com/MMMedia/identifying.html  -- Robbie