✅ SOLVED button found today in Denmark, id would be appreciated.

[jan nielsen]

One Times one cm wide.it is glass.

 

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[duggap]

Better pictures will help with ID, but it looks more like a shirt stud type button.

 

[CRUSADER]

Agreed,18th C Collar Stud, maybe a cufflink.

 

[jan nielsen]

Thanks guys, it is hard to take a better picture since the button is so small. But I think that you are right.