I don't know anything about them and cannot see any stamps or identifying marks on them.

They were a gift and pre-owned when received, I know only that they are very old.

They are very light and comfortable to wear.

I don't know what they are made of - they don't feel like celluloid or ivorine.

If anyone can identify them I'd love to know.

Measure 8cms from top of the hook.

Happy to supply more photos if you want them