When did the PRR discontinue the practice of showing the engine number in the front keystone on diesel engines and electric motors? I've looked through photos in my PRR books and can't identify a general time frame in which this change took place.
Curt
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the shark nose diesel was the last engine to have them ..
Thanks Josey! The PRR took their Shark noses around 1950/51, so I'm guessing the changeover to the interlocked PRR on the nose would probably have begun around 1953-1955.
Curt
The Diesels lost 'em around '54 - '55, but the juice kept the numbers 'til the end.
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