I’ve some O (as opposed to O-27) track by an unknown manufacturer. It’s lighter, compared to Lionel O, but it’s main curiosity is that it is superelevated. The ties are narrower, but taller, at the outside of the curves. I did not measure, but eyeballing it, I would guess a difference of about 1/8th of an inch between the inside and outside rails of a curved section. The ties are also stair-stepped, with each rail sitting on its own little terrace, so that the rails do not lean. Interestingly, the straight sections are superelevated in the same way.
If we get a photo of the opening poster’s track, we’ll be able to tell a little more about it.
The pictured track is American Flyer, but I have other superelevated O track with “terraced” ties that more nearly resembles – in general tie shape, height, etc. – regular O track, such as Lionel. Manufacturer is not identified on the track. (Sorry, I can’t take photos to post.) Perhaps American Flyer, perhps Ives, perhaps foreign (I’ve heard that Bing made such track.) Then, I have superelevated track with wedge-shaped ties (the rails are at an angle off-vertical), and some other track that has just two “terraces” – the outer rail is raised above the other two. All of these, BTW, are roughly 26 or 27 inches in diameter, eight sections to a circle; the American Flyer track pictured above is about a 39 inch diameter with 12 sections for a circle (just like regular American Flyer O39 or O40 track.)
