What we know:1. It's American2. It's made to clip into a key-holder3. It's not a Ludwig key4. It's not a Rogers key (but very similar)5. It's not a Slingerland key6. It's not a Gretsch key7. It's chrome plated
Hmmmm.........my vote is for Leedy, Camco or early DW......ooooh, what about a Fibes, or North drumkey? :D