TedHartwell

Thank you both for your responses and also for the suggestions about including sizes and cropping future photos.  This one is definitely dime-sized and fits the 18.8 mm approximate size you mentioned.

Not expecting this to be worth anything because the features on both sides are worn smoother than a baby’s bottom.  I’m just curious whether there’s enough there that anyone can tell me what it once was.  The only thing I can really still make out is the date “1821” and some stars around the margin.  Have no idea what that is on the back…maybe an eagle?  Came across it in a bunch of my great grandfather’s Knick knacks and am just curious.