How do I know the scale?

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How do I know the scale?

  • I bought LOTS of old trains today and I have no idea how to tell the scale!! Any help would be appreciated!!
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  • The easiest way is to measure between the backs of the wheels, known as the back-to-back dimension. Then go to the chart on the NMRA Standards page, linked below, and find the measurement under column B.

    http://www.nmra.org/standards/S-4_2ScaleWheels.html
    Smile, it makes people wonder what you're up to. Chief of Sanitation; Clowntown
  • can you get some measurements?

    James, Brisbane Australia

    Modelling AT&SF in the 90s