Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Decatur.
IMO.
the most important diagnostic feature of a base fractured by removal of two flakes inward across the base
...However, when the first removal runs completely across the edge of the base to the other corner, as sometimes happened, the result is one continuous tranchet flake surface, as willjo's example seems to show...