It looks like a giant mustard jar. Never in the ground. The jar was blown into a 20 ribbed bottle mold. The lip was sheared and then rolled outward to form a thick rounded lip. This is not machine made or applied lip. There are some cooling lines in the lip that can actually be felt as you run your finger around the top. There are no chips or dings. The condition is like it was made yesterday. It appears to have some kind of mark on the base, but I can't make it out. The mouth opening is 2 1/4".