This is a well made Jersey Bluff style Discoidal from an Illinois collection that was most likely found in Knox or Peoria Counties. It measures 2-9/16” in diameter x 1-7/16” thick and is made from a light gray colored quartz. This nice disc has well formed, deep cups and nice wear and polish. This a good authentic example of a pretty rare relic for the area found. All my artifacts come with a 30 day NQA return policy and longer if you would like to request. I stand behind all m...y artifacts 100% for authenticity.