OCS & Hay
NS 950 at Marion, PA eastbound. The train is deadheading to Altoona over the Lurgan Line. Both A units are originally B&O F7s. The 4270 was built in January 1952 as B&O 937, later renumbered to 4580 before becoming MDOT 7181 and then MARC 81 after a rebuild at Morris Knudsen in 1981. The 4271 was built in August 1952 as B&O 947, renumbered to 4590 then 4557, later being rebuilt at MK in 8/82 for MDOT and becoming the 7185 and then MARC 85.
OCS & Hay
NS 950 at Marion, PA eastbound. The train is deadheading to Altoona over the Lurgan Line. Both A units are originally B&O F7s. The 4270 was built in January 1952 as B&O 937, later renumbered to 4580 before becoming MDOT 7181 and then MARC 81 after a rebuild at Morris Knudsen in 1981. The 4271 was built in August 1952 as B&O 947, renumbered to 4590 then 4557, later being rebuilt at MK in 8/82 for MDOT and becoming the 7185 and then MARC 85.