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Showing the old and new forms of car retarders. In the rear is the original Hannauer electro-pneumatic retarder and in the foreground, the improved electric retarder, both on the demonstration track at the General Rail way signal plant.

Retarder array, tower in view. Circa 1964. with loaded auto racks from ML-12 to be sent to B&A and New Jersey on River Division.

Retarder array, tower in view