Identify a hallmark on silver tea spoons? - George Day?

I’m new to this game and I’m trying to identify the manufacturer and year of six silver tea spoons. I’ve attached the image of the hallmark.

This page might be applicable? - silvercollection.it/englishs … XGDDD.html

Final question would be, are they worth anything?

I would say 1817, and George Day.

Thanks…

Any would there be any interest in this? Or are they too common etc? Got a funny feeling they’re George III related?

Well, they were assayed during the latter part of the reign of George III, but thats the only relation.
I would suggest looking on the ‘Completed Listings’ of the famous online auction site to get an idea of costs etc.
Regards
John