Apparatus constructed by Karl Rau in New York for drilling through diorites, , (anthropology book, 1874)

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Photo credit: © Quagga Media / Alamy / Afripics
License: Licensed
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Keywords: art, black, cut, draw, drawing, drawn, early, engraving, frühgeschichte, frühgeschichtlich, geschichte, hand, historical, history, illustration, illustrations, line, lineart, monochrome, prehistoric, prehistory, times, urgeschichte, urgeschichtlich, vintage, vorgeschichte, vorgeschichtlich, white, wood, woodcut, woodengraving