Flat button with face on it

[Ninjafossils]

I found this flat button in a New Hampshire field with 1700s-1800s history. There is a face on the front, holes throughout and no makers mark on the back. Anyone have any other information?

 

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[TxDetex]

Nice openwork button, a picture of the back would be helpful.

 

[Ninjafossils]

Nice openwork button, a picture of the back would be helpful.

Unfortunately there are no markings on the back

 

[ripvanb]

Is there signs of a shank on the back? Just a broken nub of one can tell much about its age.

 

[Ninjafossils]

Is there signs of a shank on the back? Just a broken nub of one can tell much about its age.

It’s an alpha shank (1770s-1800)