What is this thing?

[Aparecium]

When you turn the handle the two pieces of pale wood side part each other, reversing their direction every 180degrees of turn.

What is it? Does it have a name?

Anyone?

Don’t know, but it’s a fascinating thing

The original fidget toy.
https://www.etsy.com/listing/786831037/french-vintage-toy-game-miniature-puzzle

I think it’s called a vault lock.

Archimedes Trammel

@Leela2 bingo!!

love these sorts of mysteries off to learn even more about them. !

And this is just one of the reasons why I love Mumsnet 😄

Thanks!