New York State Archaeologist William Ritchie assigned Normanskill points to the Late Archaic Laurentian Tradition, which includes Brewerton and Vosburg points. These points are narrower then other Laurentian points. They display broad side notching with a flared base that may be either straight or convex. The stems are often basally thinned. Here is Wm. Ritchie's description of Normanskill points:
http://collections.nysm.nysed.gov/pr...rmanskill.html
Description from the Maryland typology guide:
Description from lithics-net:
Left to right, chert example from Ma., felsite and chert examples from coastal Rhode Island:
Other side of large example in above photo, showing the stem is basally thinned:
Argillite(argillaceous slate):
http://collections.nysm.nysed.gov/pr...rmanskill.html
Description from the Maryland typology guide:
Description from lithics-net:
Left to right, chert example from Ma., felsite and chert examples from coastal Rhode Island:
Other side of large example in above photo, showing the stem is basally thinned:
Argillite(argillaceous slate):