"I have long heard of Sn3 but not Sn2. Is Sn3 modeling a 3-foot gauge and Sn2 modeling a 2-foot gauge? Or do these designations imply something else?"
Earl, you have it exactly right. The "S" denotes 1/64 scale, the "n" a gauge narrower than standard, and "2" for the track gauge. Similarly HOn3, On2, etc. I wonder if there is anyone who models in Sw5 or Sw6 -- something like the early Erie wide gauge, or the 5-footers that were common in the South at the time of the Civil War. Lee Rainey
