Title: Bannerstone, Double-Notched Butterfly
Object type: Bannerstone, Banded Slate with Inclusions
Date: 6000–1000 BCE
Culture: Archaic
Medium: Slate, banded
Dimensions: H. 2 5/16 x W. 3 1/2 x  D. 1 1/8 in. (5.9 x 8.9 x 2.8 cm)
Classification: Stone-Ornaments
Credit line: The Michael C. Rockefeller Memorial Collection, Bequest of Nelson A. Rockefeller, 1979
Geography:   Ohio or Illinois  United States      
Department: The Michael C. Rockefeller Wing
Repository: Metropolitan Museum of Art, New York, NY