Hi Everyone, hoping someone can maybe help me here

A friend of mine has a 400 year old Elizabethan coin that he'd like set to wear as a necklace (he doesn't want a hole put in it) and I'm not sure the best way to do it. Pictures are below. He'd like both sides visible and for it to be reversible. It's supposed to be silver but I don't believe the silver content was particularly high back then.

If anyone has any suggestions that aren't too complex that would be fab thank you!! Daisy

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