DL&W brake system help


Lester Breuer
 

I am looking at Delaware, Lackawanna & Western auto double door rebuilt steel box, series 11300 to 11599, rebuilt 1935 to 1937   The Yarmouth Model Works kit #115 comes with K brakes.   Upon looking at the Jan. 1953 ORER I see 199 cars still in service.  My question did the cars in service receive AB brakes or did they not run in Interchange service?

Thank You in advance for your time and effort to answer.
Lester Breuer

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