Congratulations Coert. Wonderful find!
I noticed some discoloration on the Wappen. If this is active verdigris you will want to get rid of it.
Verdigris is essentially brass rust --- oxidation.
Here is a trick I use when I want the original patina but also wish to stop the progression of the oxidation:
1) Remove the Wappen carefully and wash it with mild soap and water, NOT polish.
2) With a Q-tip or brush completely saturate the verdigris area with vinegar and let it set for a couple of minutes.
3) Some will disagree with this, but I always follow this up by putting a couple drops of machine oil over the offending area.
The piece retains the green of the verdigris but the advance of the oxidation is thwarted.
John :bravo: :bravo: :bravo: