Snyder points are associated with the Hopewell Culture of the Middle Woodland Tradition.  They are found from the Great Lakes in the north down through Tennessee.  They were probably multipurpose tools  but are also found in ceremonial contexts.  They date from 2,00-1,500 years ago.  This specimen is made from a hydrothermal Precambrian chert from Barra do Chapeau, Brazil.  

Snyder Corner-notched point R1221