| The 41 contactor pressure plate will operate Post-War, Pre-War, and new operating accessories. It is used to activate either O or standard gauge accessories. It is placed under one tie of a piece of track, and, with the weight of a passing train, it activates the wired accessory. Two metal plates, pressured operated, single pole, single throw switch. These examples come in their original boxes (may be missing some interior flaps) and are in Excellent or better |
