Unknown date. The lettering is not on the actual print. The scan are lower resolution than the prints.
RR PRINT CHICAGO, St PAUL MINN & OMAHA 2-8-2 STEAM HELPER ACTION #411
Chicago St Paul Minneapolis & Omaha Railway Steam Locomotive 396 Photo CStPM&O
Chicago St Paul Minneapolis & Omaha Railway Steam Locomotive 407 Photo CStPM&O
Chicago St Paul Minneapolis & Omaha Railway Steam Locomotive 406 Photo CStPM&O
Chicago St Paul Minneapolis & Omaha Railway Steam Locomotive 408 Photo CStPM&O
