This is a Randall-era piece from Sidney, Ohio. Depending on the paper label, it could have been labeled either Wagner or Griswold. It is 1960's vintage, and generally not sought after by collectors. I'd be looking for a $5 price on this piece. Please note, there is an example of a Teflon coated piece like this in the Book of Wagner (the Red Book)put out by Schiffer books. Between the Red, Blue and Yellow Books you can find much of the information you are looking for. Ebay can give a much better "current market" value for pieces like these. I have seen these skillets there recently. They were made in sizes 3, 5 and 8. The sizes 5 and 8 were offered in plain cast iron and Teflon coated versions.