Guy Wilber

Ed wrote:

Can anyone tell me: 1)when were placard boards moved to the low position on box car doors and ends; and 2)when were power handbrakes made mandotory on all cars used in interchange service, or if they were not made mandorory, did some other rule make it impossible to use anything else and be in compliance.

If possible, please sight a reference.
Geared hand brakes were required on new and rebuilt cars (in interchange) on, and after, January 1, 1937. There is no provision within the AAR's Interchange Rules making geared hand brakes mandatory on all cars within the timeframe of this list.

Guy Wilber
Sparks, Nevada

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