adalbent

Updated: June 4, 2025

This shaft has now reached a perpendicular depth of a little over 3,100 feet. There is only one deeper vertical shaft in the world the Adalbent shaft of the silver-lead mines of Przibram, Bohemia, which at last accounts had reached a depth of 3,280 feet.

Various - Scientific American Supplement, No. 508, September 26, 1885