This object is known as a preform and represents a stage in the making of a type of stone tool known as a biface. When completed these tools had sharp, strong edges because chips of stone were knocked off both sides of the original piece to thin it.
|Common Name||biface preform|
|Production country||United States of America|
|Collection class||Tools for farm and craft|
|Production county||East USA|
|Production year low||6500-5500BP|
|Production year high||1000BP|