Biface preform Description 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 stone to thin it. Accession Loan No. 54/1948/76 Collection Class Tools for farm and craft Common Name biface preform Simple Name biface Full Name biface preform Dimensions whole length 79 mm; whole W 48 mm Production County South East USA Production Country USA Production Area Region N Production Continent America Family Group Material chert (Tuscaloosa) Function Name tool Collection Area Region N Collection Continent America Tell Us What You Think Click here to cancel reply. Subject to approval, your name and blog comment will be made public. Any comment replies will also be public. Your email address will never be published. If you wish to contact us privately, please use the Contact form. Required fields are marked * Name* Email* Website Comment Δ