This DO has been in the family since the late 50s to mid 60s. It originally had a glass lid but it got dropped many years ago. Fortunately, a Revere Ware skillet lid fits perfectly. I think it's an unmarked Wagner Ware based on pictures on the internet. Sorry about the 50 some years of crud on the bottom. The inside is nice so I've put off doing the electrolysis thing. My grandparents owned a hardware store in the 50s to early 60s, so I expect much of the family cast iron came from their store. Is this most likely an unmarked Wagner Ware?