It really fascinates me the vast array of trap designs that are out there. Not only vintage traps, but modern ones too. Some very clever individuals, thinking up all sorts of idea's, and most work very well, when it comes to catching, and killing things.
Here is a Canadian trap, that is very interesting to look at. I don't believe they were in production for very long, so are very much sought after these days. It's called the Gabry Bionic Trap, which is ratcheted. You can increase the power of the trap, by literally winding it up. I'm almost sure the inventer makes the Belisle conibear