C4 70 ton 1958 cubic foot ACF covered hopper, Mineral Red

C4 70 ton 1958 cubic foot ACF covered hopper, Mineral RedHO scale, with trucks and magnetic couplers. Six car numbers available. Cement is a binder that sets, hardens, and adheres to other materials to bind them together. The most common type, Portland cement, is made by roasting limestone, with other materials such as clay, to 2,640 degrees Fahrenheit in a kiln to form calcium silicates. Clinker from the kiln, plus a small amount of gypsum, is ground into a powder to make ordinary Portland cement, which is

See Reference Sheet 146

some depots were built in a mirror-image of the design shown in the GN drawings

RS-284 - GN's Whitefish

individual 3-tabbed style roofing shingle strips

including depots

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RS-167 - GN 25-foot Wood Cabooses

and later taconite

Tower posts and braces were evidently raw wood until 1918 when they were to be painted mineral brown

pivotal or positional doors

photographs

See GNRHS Reference Sheet 407 for details on the creation of WFE