Someone showed me this object in the hope that I would know what it is. ‘Fraid not. It remains a mystery to me. I considered that it might be a keyring but it’s too thick for that, I think.
It says “Compliments of the Swan pen people” It is hinged so it can fold in half, also it has a spring catch on one of the hinges so it can open up. It’s just over one inch in diameter.
Any ideas about what it might be?With thanks to Des Bull for photos and information