China Silver Mark on fold over clasp - huge puka shell necklace

[Plainjanes]

The fold over clasp on this necklace has CHINA and SILVER marked on the back, along with an unknown hallmark. I was hoping more info on the clasp markings could help me date the necklace. It is a large puka shell necklace, weight about 120gms. I was assuming 1930's, think I'm close? (I have spent the night googling this and have nothing)
Thank you

https://ibb.co/gkOzVk
https://ibb.co/b2CF35
https://ibb.co/iVVPwQ

[dognose]

Hi,

Welcome to the Forum.

You will have a far greater chance of getting a response if you embed your images. Very few people will click on links or thumbnails.

Trev.

[Plainjanes]

Thanks for the info. I used the [img] tag as per the instructions. Is there another way to do this? I've looked at the FAQs and don't see anything.