...I purchased it at the TCA Atlantic div. show off of some guy. He said
that a machinist for the Pennsy made it for some exec there. It is mostly copper
with hand punched rivet marks, DC can motor with a reduction gearbox. We timed
it at Altoona and it is slow as molasses we had it running at 22 volts (full
throttle on the Z4000) and it was only drawing 1/2 an amp. Took a full 4 minutes
to make one trip around the Altoona loop."
Sounds like it was geared to run at a slow prototypical speed.