Agreed early Georgian period cuff link button.Im not positive but it looks like a "drilled shank" I think that would place it late 1600's- 1700s but again Im not sure.
Here are some drilled shanks to compare. Early Buttons
Not sure IP,but the bust looks a awful lot like William (duke of cumberland). Like this one...............No green check yet. It's definitely from an early cufflink but who is that on it?
Well that's my button, and I don't think it's him.Not sure IP,but the bust looks a awful lot like William (duke of cumberland). Like this one...............
UK Finds Database - - - UKDFD
The one in Timekillers link is, yours doesn't look the same, mine was Silver.Is that a button you found SS? Has the exact same markings as mine.