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Bestand:Stanley No. 49 Auger Bit Depth Stop Gauge.jpg

Creative Commons Attribution-Share Alike 4.0 truetrue English A depth stop for a drill bit powered by a hand operated brace. URL: https://commons.wikimedia...


Bestand:A text-book of ore and stone mining (IA cu31924004106203).pdf

This file has an extracted image: Kincaid & McQueen bucket dredge art - A text-book of ore and stone mining (IA cu31924004106203) (page 212 crop).jpg....