Undercutting Coal Seams

Turn-of-the-Century Coal Mining Machinery
From Cassier's Magazine in 1901
The "Harrison machine" from Cassier's Magazine in 1902
The "Harrison Pick Machine" from Cassier's Magazine in 1902
A Pick Machine from Cassier's Magazine in 1902
A Pick Machine from Cassier's Magazine in 1902
Morgan-Stanley Electric Chain Cutter from Cassier's Magazine in 1902
Jeffrey Manufacturing (Columbus, Ohio) Electric Chain Machine from Cassier's Magazine in 1902

Punching Coal Seams
Drilling Coal Seams
Applying Electricity to Mining