Thanks for the information guys!
The penny is just for size, the front of the button has no markings.
I found some info on Leavenworth Hayden & Scovill, they would have made the buttons between 1811 and 1827.
That make this the oldest thing I have found so far "got my detector in August", thats so cool.
I live in wolcott CT. right next door to Waterbury the home of Scovills almost all of my fathers family worked for Scovills their whole lives.
This forum is a lot of fun, thanks for all the answers.
Joe