S Scale

The period between the first and second World Wars saw the rise of smaller model trains, starting with S scale (1:64) in the 1930s, popularized by American Flyer Trains (made by A.C. Gilbert Co.). These trains became popular because they ran on more realistic-looking two-rail track instead of the three-rail system used by competitor Lionel. While many collect vintage American Flyer trains, there are many  manufacturers making modern S scale products today. Selection of trains and accessories can be limited, but some hobbyists enjoy the challenge of building their own models from scratch and improvising from parts.