Revolutionary War Board of Ordanace Button? Three Cannons on Sheild

[Chevy57]

I found this among some very old buttons. My research gave me the title but little else. Real or Fake and what would be a value?

 

[Iron Patch]

Those British Royal Artillery buttons are thought to date just after the Rev War. Value isn't much, about $25-$40 for one in Average dug condition. A non dug very nice one might get in the $100 range.

 

[Chevy57]

Thank you so much for your help.