Gauge 3

From Cumberland Model Engineering:


 * Gauge 3 represents the 4 foot 8.5 inch standard gauge trains of the real world in 1:22.6 scale with a model track gauge of 2.5 inch (63.5mm) between the rails; and from this perspective, as a scale-and-gauge combination, it is spot on. Gauge 3 has a long history, in fact a very long history, as model trains go, dating back to 1891 when it was among four original model track gauges created by pioneering German toy maker Marklin (Gauges 1, 2, 3 and 4). Known more commonly in the United States as simply 1/2 inch scale or 2.5 inch gauge, it was very popular among live steam enthusiasts during the 1920s, 30s, and 40s. During this period, what we may call the "golden age" of Gauge 3, several locomotive kits were offered by Martin Lewis, H. J. Coventry, and Carl Purinton among others.