Washing for tin. After digging out a substantial amount, miners would alter course of stream, washing away light material, leaving tinbearing ore. De re metallica, Basle, 1556. Woodcut. Editorial Stock Photo - Afloimages
Washing for tin. After digging out a substantial amount, miners would alter course of stream, washing away light material, leaving tin-bearing ore. De re metallica, Basle, 1556. Woodcut.