The slightly larger and darker troll on the far left is extra special: he was made for the European market. Such trolls are distinguished by darker, softer vinyl, heavier weight, and dark brown glass eyes. He was actually the first vintage troll I ever bought, discovered in a pile of junque at a rather shabby antique mall. Several years passed before I learned precisely what he was. Quite the find he turned out to be (if you're into trolls, I guess that is. If not, then I suppose he's not especially appealing.)
European-market troll on the left, American on the right.