Cannot Identify Hallmarks on this Tankard

[sween]

Its an early piece, but again I'm having trouble even identifying the country. Thanks in advance!!

[dognose]

Hi,

Can you post an image of the marks on the side of the tankard?

Trev.

[sween]

These are the hallmarks on the side. Thanks!

[dognose]

Hi,

Thanks for posting the extra image, it reveals much.

The marks appear to be those of William Gamble, the tankard being assayed at London in 1715.

Trev.