December 20 – On This Day In History Published December 20, 2017 By Lindsay Hiltunen About the Archives From the Daily Mining Gazette, December 20, 1917. ← Previous Post A Calumet & Hecla Rosetta Stone: Reading a C&H Employment Card, Part 1 Next Post → A Calumet & Hecla Rosetta Stone: Reading a C&H Employment Card Part 2
