Two big 2-10-0s cut in as mid-train helpers assist in lifting a train up the Western Maryland main line west of Cumberland, Md., at famous Helmstetter’s Curve in May 1952. The road engine and rear-end helper are also Decapods. WM’s class I-2 engines were the heaviest 2-10-0s ever built.
Edward Theisinger photo
Helpers on Helmstetter’s Curve