Mayfield Slate Quarry, SkowheganItem 9085 info
Skowhegan History House
Workers then trim the slate to insure a uniform thickness for use in roofing.
While the work was once done by hand with a chisel, by 1889, it was done by a steam-operated knife.
Slate companies also make tubs, sinks, countertops, blackboards, hearthstones, flooring, windowsills, and numerous other products.