Greetings,  I have been asked to give some TLC to an Artizan X-A
46-key military band organ.  The number stamped on the cabinet is 472.
It has a single player unit and uses air not vacuum to play the rolls.

Does anyone know of another one like this?  Any information would be
appreciated.  I am curious as to what material was used for the valves
that appear on the outside of the individual blocks.  It looks like a
hard cardboard. ??

As always, thanks in advance,
Martin Anderson