Early 19th century copper pot

Code: H20741

A large, early 19th century, copper pot with a single handle. I am unsure of the purpose of this piece. It is shaped like a tankard but is far too large for this purpose. The interior was originally tinned, so it was for use with food, but it was not for cooking. Could it have been a measure of some type?. It is made from a very heavy gauge of copper and has castellated seams. It is probably French and dates from c.1830.
It is in very good condition but the tinning, to the interior, is worn

Dimensions: Height 21.4cm. Diameter 20.5cm. Width 25.5cm.

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