This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
LABlitz. Arbeiter vor Ort mit Saulenbohrmaschine Cole mine schematic Drilling of blastholes with air drill Drilling of blastholes with air drill PressluftSchrammaschine zum Herstellen Schlitzen book Meyers BlitzLexikon Meyers BlitzLexikon Mining machines LABlitz
Page 2023 Free-images.com. All images are Public Domain