Blanks from the Pietersburg phase ‘28’ of Bushman Rock Shelter (#135/158, #298 and #1825: Levallois blades; #1483: Levallois flake; #1485 and #2227: “Prismatic” blades) (drawings by M. Grenet).

<p>Blanks from the Pietersburg phase ‘28’ of Bushman Rock Shelter (#135/158, #298 and #1825: Levallois blades; #1483: Levallois flake; #1485 and #2227: “Prismatic” blades) (drawings by M. Grenet).</p>