Can anyone ID these buttons.

[Evolution]

The first of these buttons I found a little while ago but never posted it. The second I found today. I believe it is pewter. Anybody have any idea on these? Value, if any?

 

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[romeo-1]

First button may be tombac...it looks pretty clean. Late 1700s.

 

[RELICDUDE07]

great finds tombac i have seen alot of buttons they look 1700s / go to the the crazy compulsive collector /on e bay and look under 1700s colonial hes got alot of cool stuff from 1500s to 1900s on there for sale might find some like that?