Here is a good one. This is an antique tool about 10 feet long. It is the tool under the saw in the first pick. A closer shot of the business end. I would think that Tiga has the best chance of knowing/guessing this one, followed by Red.
I've seen "frog grabbers" similar but not that big. Given the fact it's hanging on a wall with mounts I'm guessing it's some kind of instrument to grab some type of game.