Age and origin of this vessel? I might call this the "ugly stray dog" of metal tankards, because I'm pretty sure only I would find its "survived a shipwreck" esthetic appealing. It is 5 inches tall and three inches across the base and the mouth. The base metal of the whole thing appears to have been copper coated with tin or silver. I am guessing tin. The brass handle is riveted on with what appear to be copper rivets. The bottom seems to have been pinched/crimped on to the body of the vessel. And there seem to be quite a few of these in the antiques markets here in Savannah. Slightly different sizes and shapes, but certain features are consistently the same: same copper base metal, same fading coating (probably tin), a narrow curved brass handle, and a pinched-on/crimped-on bottom piece.
Are these features common to a particular era and/or region?
Also, there seems to have been a much more modern recent coating applied to the interior bottom of the piece. I would guess this was done to make usable without leaking.