@MartyE posted:
I looked up the M4 class on the cab to find they were 0-8-0 switchers on the C&NWs. For modelers, note the canvas (rear of cab and over window) to keep out the cold on the cab and the low hanging piping that one might think would get fouled/ snagged while operating.
No signs of global warming on that December day in Chicago!
Thanks again for posting.
Tom