Before HO scale became the standard for model railroading, O scale was the dominant size, with a ratio of 1:48. However, in the early 20th century, a growing demand for more compact model trains ...

From left, team members Gale Treiber, Rich Feller and Paul Cieurzo are in the midst of building a new HO scale model railroad layout for the upcoming show. Wilford Kale/freelance “Our mountain ...