I have just joined your forum and have a small amount of cast iron cookware. I recently came by a Dutch Oven without a cover that I am trying to Identify. I am told that it is possibly made by BSR but only has markings of size and made in USA. No manufacturer's ID. I don't think it is very old because it has machine markings (Turns) over the entire inside, bottom, but would like to make positive ID and date.