Nice! Love the history in this pic...thanks for sharing
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Very neat Tom! I didn't know their H24-66 got re-engined with ALCo 251's.
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Those tracks have changed since this was taken.  I have one of these fine locos in "HO".  Always loved the slanting fans and their sound.
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3599 was one of the original TM demonstrator units: FM TM-2. It became Wabash #551, then 599 before acquisition by N&W. Later Wabash TMs like the ones trailing had lowered end platforms to better mate with units of other manufacturers.
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