Perfect for busy HO mainlines, this detailed Cornerstone structure kit is based on a Pennsylvania Railroad interlocking tower, constructed at Bricker, Ohio. Opened in 1946, the prototype was later used by Penn Central and Conrail until late 1981, making it ideal for late steam- and diesel-era layouts. Perfect for busy HO steam- and diesel-era lines Authentic Pennsylvania Railroad prototype at Bricker, Ohio Used by PRR, PC and Conrail from 1946 to 1981 Detailed brick, walls, separate windows, doors and other details Measures: 5-1/4 x 3-1/8 x 5-5/8′ 13.3 x 7.9 x 14.2cm