Cufflinks with a chain?

[TreasurDiggrNY]

I never saw these before, any ideas

 

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[gunntekk1]

could be a collar holdemtogethertningy

 

[creskol]

Not sure, but they may be collar buttons

 

[duggap]

Didn't they have a cloak that was fastened at the neck by one of those?

 

[jeff0172]

I agree with duggap it looks like something that would be used for a cloak or a cape button chain guard