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Originally Posted by Maurice
Could it be some alloy?
On the bands in the middle (the two smaller onces) there are some traces of green assessment, which is also seen on those brass lantaka's.
But at the other hand the lowest one looks more "white".
Now I am in two minds......if it is silver I want it to get polished........and if it would be brass I like this kind of patina........   |
Actually the silver used then and now is alloyed with copper. This is why sometimes on old silver pieces there is some green patina. Often back then there was even more copper content than what is commonly used today, often close to coin silver (today: sterling silver is used - 92.5% silver and 7.5% copper, coin silver is 80% silver and 20% copper).
Thus I am shocked that there would be some green patina. If brass, it is obvious, but if silver, don't be surprised that some green patina might be present.