Can you help identify this item (presumably from 1929-31)?

[7leafclover]

Found in Hot Springs 4-6-2014. What is it? It looks like a lid to cosmetics, snuff, or a watch? I thought it to be a little too thin for a watch. Its brass or copper with a hinge. I also found a Ford Model T key in the same area.



Thanks!

 

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[Bass]

It could be for that stuff ladies carried and they would use to revive someone from a faint. "Smelling Salt"

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