A Southern Pacific Railroad GS 4 Daylight 4-8-4 steam locomotive pulling a freight train. The Oak Park Society of Model Engineers,H.O Scale Model Railroad Club. Oak Park Illinois, 2012.

I took this photograph last year, during a Wednsday night operating session at the Oak Park Society of Model Engineers,H.O Scale Model Railroad Club. An MTH model of a classic 1940's era Southern Pacific Railroad GS 4 class Daylight 4-8-4 streamlined steam locomotive, is viewed puling a freight train on the club layout. Although the Southern Pacific GS 4 Daylight class were originally assigned to passenger train service, many finished their careers hauling freight trains as diesel locomotives began replacing them on passenger trains during the 1950's.