I thought I would throw this out to see what others have done or currently do. I recently purchased an out of the woodwork M1933 SS RZM 7/14 1936 dagger complete with vertical hanger (RZM 1/36 SS maker marked). I need to get photos but am laid up with a hand surgery. After inspecting the dagger and removing the hanger I discovered that the areas beneath the hanger were coated with the "green gunk". Of course, this adds to originality but I have no doubts as it came from the vet's estate via his widow. I have noted it on the hangers of several of my other daggers where the earlier nickel silver fittings come in contact with leather.

Anyway, I've grown to appreciate patina bit regard the verdigris as an extreme vorm of actual corrosion that I feel should be removed and/or neutralized. My questions are how do you stop/remove the verdigris ideally without destroying the patina? Do others agree that verdigris is detrimental to a dagger?

The hand says it is time to rest.

Thanks for the help!