There is this "mystery" skillet, which is rather cruddy - I've used it a lot for baking bread at high temps in my barbecue - after cracking a LeCreuset pot - so it has been exposed to high temps and not been treated all that well, occasionally knocking off some of the burnt-on stuff with the wire grill brush. I've tried to chisel off some of the burnt on polymerized gunk, but it is not easy. (oven cleaner had little effect)
I bought it when a local sporting goods/gun store that carried some "camp cooking" utensils went out of business some time in the '90s (I think).
It's hefty - weighs more than similar sized skillets. I haven't been able to figure out who made it. It says "American Cookware" and made in the USA and it isn't old - it was new when I bought it but the store had been in business since 1940 but I don't think it had been on the shelf that long...
I would like to know something about it, I don't care if it is worth anything, I'm just curious.