MTH Electric Trains, 7393 Washington Blvd. Ste. 101, Elkridge, MD 21075, is selling O gauge Depressed Center Flatcars as part of the RailKing line. The engines feature O-27 operation and are available ...

Before HO scale became the standard for model railroading, O scale was the dominant size, with a ratio of 1:48. However, in ...