WD40 worked well for me on a title, no change to patina, where the verdigris had actually attacked the metal was brighter but this toned in well after a few days. Would this be due to the age of the metal? (WW1). I mentioned a similar thing happening with another title some time ago, this was rubbed with very fine wet&dry and darkened up again in a week, i`m sure this wouldnt happen with "new" metal.
Bill.
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