Pennsylvania Railroad Interlocking Tower. For the Centennial Exposition of 1876 in Philadelphia, the Pennsylvania Railroad adopted the block system, which helped to prevent train accidents. The interlocking tower managed switches and signals at each block. These octagonal interlocking towers were spaced from 6-10 miles apart along the main line. Most added stairs and awnings after time. This style of tower lasted until the early 1900′s until replaced by more modern towers. This kit is also available in HO scale.
Difficulty Level: Intermediate – Painting, moderate complex roof assembly, simple stair structures