I think that was B&O #50 originally built in 1935 with a 201A Winton diesel engine and was double ended as originally built. It was rebuilt several times, went over to the Alton when it was finally merged with the GM&O. As shown here it has the "shovel nose" appearance of about 1937.
While I haven't seen it there, I understand that the engine is still in existence at the Museum of Transportation in St. Louis. I don't think that there are any examples of Winton engines still operational.
Even the Flying Yankee, now in New Hampshire being restored, will have a 567 type EMD engine powering it when (if) it ever gets operating again.
Would be on my "bucket list" to finally hear and see one of those old engines running in a restored locomotive, some day.
Paul Fischer