Rare Antique Silver Tankard w/ 1797 Georgius Brittania Penny (King George III) *Very old… I’m sure it would clean up nicely but I haven’t attempted it. *The 1797 Georgius Britannia coin, also known as the "cartwheel" penny, was the first copper penny to be circulated in Britain. *Very heavy. It weights 1 pound 12.1 ounces. *Unique and hard to find. I haven’t been able to find another one just like it online. *Some go for several thousand online.