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Reply to "MTH SP GS4 locomotive"

In the early days of MTH, you could buy a loco with PS-1 (or Protosounds, as it was called) or just a reverse unit and bell and whistle.

Your picture shows a QSI reverse unit and some kind of a sound system - likely the bell and whistle.

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
330-757-3020

www.ogaugerr.com
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