I have a page on metallurgy of Constantinian bronzes with a bit about the silvering process including sources for lots more information--...
as Ken quoted, this type was reference by Voetter. a draped and cuirassed example from Constantine--...
After soaking in oil, I boil coins in water with a detergent called alconox -- "Alconox is a non-corrosive, high foaming formula that can be used...
You are right, it is not genuine.
These aren't as disproportionate as Aurelian, but still not quite rat (pardon my Southern accent). two from Gallienus [ATTACH] [ATTACH] and...
I guess you are talking about his 1933 article, which is very much outdated. Anything pre 1950's on dating of these coins is not very useful,...
have you read the Brickstock book I mentioned above? There is a lot of information including this chapter- Chapter 5 -- Dating and monetary...
Unofficial issues are struck around the same time as the official coins that they copy. There is no way I would believe that the Vandals copied...
Your second coin is Gallienus with an antelope on the reverse.
Separate names with a comma.
