Public domain
Just up, Hecla [i.e. Calumet and Hecla Mine] shaft No. 2, Calumet, Mich.
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineJust up, Hecla [i.e. Calumet and Hecla Mine] shaft No. 2, Calumet, Mich.. 1906-01-01. Detroit Publishing Co.. Detroit Publishing Company Collection, Library of Congress. Public domain.