I am sure this won't be the last time a question like this will be
asked on the MMD, what with PPCo shutting down.

Does anyone know who made the "vacuum cleaner" type player piano
pump with the speed control for Player Piano Company?  Were these
made in-house?  If not, where can one be gotten today?

If a complete pump can not be gotten, does anyone know what pump
I should get from W.W. Grainger and how to wire-up a speed control
that can be used?  I have a client who asked for me to set one up
in their player.

Thanks,
Gary Stevenson
Carondelet, Missouri (So. St. Louis)