A great photo of the various engines and workers of Calumet & Hecla, taken around 1900 by Tyler.
(From the left, the engines appear to be the Manitou, Penokee, the Torch Lake ( a small Mason Bogie? ), and the St. Louis and Schoolcraft.)
The second photo is another great shot of 3 Mason Bogies from around 1880.
The third image (from a poor original) shows the Manitou around 1890.