lots of help so far!
Heres another question, as I get to the bottom of this big box of stuff (being mostly from an HO background, it’s all pretty strange-looking to me)
rolling stock is mostly older Lionel with a few K-Line items. They are fitted with knuckle couplers, which look similar to the Kadee type but don’t appear to have any moving parts? I suspect they are corroded or jammed closed and need easing.
One loco (a Lionel Scout) has a slightly different coupler with a spring steel outer tang, which looks as though it doesn’t have any moving parts.
Any comments on this please?