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CALIFORNIA, U.S.A.: SV Men at drilling machine. CU Hair mounted, brought up to drill. SCU Holes being made in hair. CU Operator looking thru microscope. CU Hair thru microscope showing three holes. CU Sable hair being pushed thru hole. CU Hand using tweezers. CU Hair with three sable hairs thru it. SV Men at machine.
Science and Technology; United States of America
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