small crank or key?

[Tony12100]

Dug this at an old colonial era town . Made of brass has a squared insert as if to wind something up. Searched clock keys but no match

 

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[nova treasure]

It's a 18th century watch winder key, Nice find

 

[nsdq]

Yep Nova nailed it

 

[tamrock]

Nice find that has a value. Georgian Period Pocket Watch Brass Crank Key For Verge Pocket Watch. | eBay