Clamshell bead?

[Blackfoot58]

I was going through some rocks I had gotten from Muscatine County. Just west of the Mississippi River.
I came across the small disc with a center hole (clam shell pieces around it).
Muscatine was a large manufacturer of “pearl” buttons for decades.
My question, button slug or native clam shell bead? No other button-related detritus was found near it.

 

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[DizzyDigger]

Maybe some type of button?

 

[russau]

Yep I agree with D D on a button !

 

[tamrock]

Not sure if its a NA button or not. Your post brings back the memories of me and my grandpa just walking along the Mississippi there in Burlington, IA. I remember seeing half shells with multiple drilled holes scattered all over the rivers edge. Grandpa told me they all came from a pearl button factory that was once there in the area.

 

[Blackfoot58]

I had an uncle that was a leadman in a button factory in Muscatine. I was amazed to see the piles of “punched” shells waiting to be hauled off and barrels full of button blanks. This was around 1965.