Bavaria Mike
New member
I cleaned up one of the rings, gave it a light brushing under water and it still had a crusty patina on it so I went over it lightly with a Dremel and wire brush attachment . It is interesting to see how patinas form in the fields. The original patina is a typical dark green like we find on coins and such, I did not remove what was left of that green patina however, the crusty patina over the green patina makes me wonder if it is not from modern day fertilizer and chemicals. Here