Brand-new Milwaukee Road class A 4-4-2 Atlantic-type No. 4 stands for a portrait at the road’s West Milwaukee Shops on Sept. 15, 1937. Alco built class As Nos. 1 and 2 in 1935, No. 3 in 1936, and No.

This time around, we'll take a look at the Atlas HO scale Alco RS1 diesel locomotive. Join Senior Editor Cody Grivno as he ...