Bought a skillet at the Goodwill today.  I think I may have 5 total now.  Thankfully something I don't collect.  It was $7.00 so I had to take it just for fun.  Likely give it away after it is clean.  Maybe sell it on eBay - what would it be worth? ;D
There is a 10 on the handle but I can't read anything else under the crud.  It seems flat, no heat ring.  Maybe an ummarked Wagner?  I really don't know.  Will a name or number appear?  I don't know but will soon, it's heading for the lye bucket.