Pennsylvania Railroad M1 class 4-8-2 No. 6987 heads a freight toward Enola Yard near Harrisburg, Pa., in July 1955. The railroad had 301 such locomotives in the M1 and M1a classes built in-house and by Baldwin and Lima.
Don Wood photo
Enola bound
By Angela Cotey | December 20, 2019
| Last updated on December 28, 2020
