The Engels mine (Engles mine, Engle mine) was an underground copper mine near Taylorville, California. The Engels Copper Mining Company was formed in 1906 after the discovery of rich copper ore bodies in Plumas County. The ...

The Oliver Iron Mining Company was organized in 1892 and acquired a number of mineral properties in Minnesota and in the Upper Peninsula. By 1901 the Company was a division of United States Steel Corporation.

The diagram shows a plan view, side view, and end view of a Klansnick safety man-car.

2 copies. B-134/491; Figure 2 cage hanger and safety catch assembly.

2 copies. B-134/492; Figure 4 tripping device for testing safety catches at Mine A.

2 copies. B-134/493; Figure 8 tripping device for testing catches - Mine H.

2 copies. B-134/495; Figure 12 details of device for testing safety catches - Mine M.

B-134/748; Figure 3 mine timber framing details.