For sale: I have two tracker bars that may be if interest to
someone who reads the MMD.  One is 100 holes, 9 holes to the inch,
with tracking feelers coming through the tracker bar on each side.
The other is a Wurlitzer tracker bar with 105 holes at 9 holes to
the inch.  This tracker bar is the kind that was removable and had
a gasket between it and its wood back part; perhaps from an RJ roll
player.

Thank you.
James Williams