History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c10.s1.t2.3
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c10.s1.t2.3
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v1.c10.s1.t2.3
Fig.2. Direct Percussion Stone Hammer Technique