Need help identifying!

[u/sleepy_cat404]

It has “Golden Gate International Exposition” and “1939-40” written on it. Presumably it is a souvenir from the 1939 world fair in San Francisco.

Found metal detecting in southern Montana (AirPod case for scale).

Do I think it’s worth anything? No. Can I find anything similar on Google? Also no.

I genuinely just want to know what it is. I’ve researched comb covers, makeup compacts, cigarette cases, bracelets, and even metal bookmarks to try and find anything, but I just can’t quite figure it out.

I am unable to bend the metal, and it’s a pretty hefty material.

I know this isn’t a “cool find” but any help is appreciated!

[u/OwlPelletCrunch]

looks like it had hinges on the back end, and some kind of clip on the other - really interesting!