OK, here it is, the Bilsom Vision. This one is a little worse for wear, but I think it's probably 20 years old. It's missing some of the posts and the remaining ones are shorter, but I have some NOS ones coming from good old ebay. At 15 ounces it's one of the lightest I've ever seen. Before autodarkening this was it. If my vision was better I would still probably use it more. I guess I need to breakdown and get some progressive bifocals. Here are some pics. In the last, I have it pointed at a bright light fixture, to show how the 2 stage filtering works. The silver area is about #5 and wraps around the sides a little, too.
Long arc, short arc, heliarc and in-the-dark!