Safety Appliance question

Tom Gloger

At what time did the roofwalk extensions (the ones on the
right as you approach the end of the car) become mandatory?
The Cyc at home (1923, I think) shows them on box cars but
not on stock cars. Maybe my MDC 36' cars aren't authentic,
but I'd at least like them legal for 1938.

- Tom "fresh meat" Gloger e-mail:
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