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Old 10-29-2015, 10:47 AM   #17
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Join Date: Oct 2014
Location: Hamilton, NJ
Posts: 3,016
Scales Modeled: Postwar/Prewar tinplate "O" scale
Images: 13
Ironclad, A lot of people get confused with the two versions, because if you just look at the top of the track, the rails are spaced the same. The height of the rail 11/16" & 7/16" is what tells the difference. Some older (Prewar, early Postwar) have wheel flanges that are deeper than others, and need the extra rail height for smoother running. When you get into switches/turnouts, then you get into other problems with wheel flanges, linkage, etc. that can get hung up on certain switches. There is a wealth of info here, that covers different styles of track, switches, and how to modify them. All you have to do is use the search function.
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