Flat button backmark

[Caintuk]

Ihave found many flat buttons in my time. I have never found one with an american backmark. Most of the ones I have found that are colonial were from England or France. I believe it says, " Harrison & Carter Philad." Any insight on this one wuould be appreciated. I found this button in the same field that I found the Patriotic snake button two years ago.

 

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[Professor of Engineering]

Cool relic, congrats!

 

[Digger RJ]

Nice!!! Congrats!!!