I can't think of any other reason for a decorative clasp on such a workmanlike chain. It's the right length, about 56" - I've always imagined it was for a someone who couldn't afford something more precious, possibly part of a servant's chatelaine? Just an oddity I've never figured out - any opinions welcome
It has the length of a cheap and cheerful muff chain, but the box slide clasp is very unusual for a muff chain. Maybe a 20s flapper necklace that has had a hard life? The style of the clasp looks German to me, but let's wait for the others.
This is not yours, as states minimum of 2 chains, but I found it an interesting read. (If it’s true) https://chatsworthlady.com/2017/03/22/vintage-1930s-art-deco-ball-chain-jewelry/
Thanks @i need help! Why do you suppose they say ball chain jewelry is always multi strand? The clasp is identical, as far as I can tell... I like my idea(s), but wouldn't want to use it as a muff chain with that clasp - i don't think it'd hold up to that use... How fun!
I don’t know why they say must be more than 2. I don’t know how accurate this is. I just thought it was interesting. Designed after a light pull chain?