Nice! Nope, I've never heard of that one before. Is it a crate tool? I see a crowbar on the end and a hammer head, but what does that piece that is held on with the screw do I wonder? (Image removed from quote.)
Yeah, it's an odd one alright. That piece could be a board puller, but it doesn't look very strong for such heavy duty work, and it is only held on with a single screw. Odd indeed.