Antique/vintage Celluloid? Thimble marks within

Hi I think this is made of celluloid as I can’t see capillaries to show it as bone. There are number of age related marks internally. It’s in good vintage condition but has marks
Internally and one externally.
I’m selling a number of good thimbles, happy to combine postage if the buyer pays that cost please and I have paypal if the buyer covers that fee please. Many thanks for looking :) Read more