Pewter stein with Napoleon I picture & war pattern

[hegeman]

Hi, would I get some information about my old pewter stein. It is about 24,5 cm high and weight is 1,4 kg. There is GHT mark in the top of the handle. And then themes: in front there is Napoleon I, and on left side of it there is solder with gun and behind it there is a house in flames. On the right side there is a solder with a flap riding, and there is also a corpse on the ground.
It would be nice to know how rare this is, and maybe someone can give some age to my stein? Is it French? Thank you for your help.