Hello. It sounds like you have a Civil War token which were used by stores as their own currency. Most were metallic. The paper ones were very rare. The most valuable of these were the tokens used by sutlers in the field moving with the troops. This is an artillery posting board however. There is a website of collecters that specialize in Civil War tokens and you can find it on the web as the Civil War Token Society. I have some of these myself. let me know how you make out but email me and lets keep this board on track.
Kim Leese
leesecw@sbcglobal.net