Bidspirit auction | Rare Engraved Cahokia Tablet, St.

Rare Engraved Cahokia Tablet, St. Clair Co. Illinois. Motley COA. Has a Bird or Birdman nicely carved on one side. Nice piece of Banded Slate with great vivid Banding, amazing polish. Nice rare artifact with heavy no brainer Patina! - Rare Engraved Cahokia Tablet, St. Clair Co. Illinois. Motley COA. Has a Bird or Birdman nicely carved on one side. Nice piece of Banded Slate with great vivid Banding, amazing polish. Nice rare artifact with heavy no brainer Patina!