Is it a battery?

[thedukeofdelaware]

Battery?? I hope it isnt...0.59 inch diameter

 

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[Bruce R]

Looks like it.

 

[nhbenz]

Looks to me like a clothing snap, the back filled with dirt. I don’t recall seeing a button type battery with text on both sides, which it looks to me that there is? But I can always be wrong.

 

[kikmc5]

Yeah I think snap also