Report issued by the Bureau of Mines over studies conducted on the pilot plant in Laramie County, Wyoming. As stated in the introduction, "the purpose of this report is to record information derived from recent experimental work that had as its objective the development and demonstration of one method of producing sponge iron" (p. 2). This report includes tables, illustrations, and photographs.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Tania Evangelus isn't going into the box but the 31-piece Sioux princess costume she's wearing will be turned over to the Wyoming Historical Society for display at the state museum. The wardrobe is worth $3,500"

A photograph postcard showing Union Pacific (UP) 4007, 4-8-8-4, in Cheyenne, WY.

A photograph postcard showing Union Pacific (UP) 4012, 4-8-8-4, Cheyenne, WY.

A photograph postcard showing Union Pacific (UP) 4016, 4-8-8-4, on mixed freight extra at Borie, WY, 78 cars, 20 mph.

A photograph postcard showing Union Pacific (UP) 5088, 2-10-2, and 4019, 4-8-8-4, west of Cheyenne, WY, on freight extra, 78 cars, 25 mph. (Note M.W. Swansick taking movies.)

A photograph postcard showing Union Pacific (UP) 5317, 2-10-2, and 4015, 4-8-8-4, on westbound mixed freight extra, leaving Cheyenne, WY, 75 cars, 20 mph. (I [had] asked the fireman on 5317 for a good smoke whenever he saw me photographing his train!)

A photograph postcard showing Union Pacific (UP) 7004, 4-8-2, Cheyenne, WY.

A photograph postcard showing Union Pacific (UP) 7007, 4-8-2, Cheyenne, WY.

A photograph postcard showing Union Pacific (UP) 7034, 4-8-2, Cheyenne, WY.

A photograph postcard showing Union Pacific (UP) 9024, 4-12-2, Cheyenne, WY.

A photograph print showing Union Pacific (UP) 9027, 4-12-2, Cheyenne, WY.

A photograph print showing Union Pacific (UP) 2313, 2-8-2, on extra train No. 501, train No. 353 to the left, and Cheyenne Depot in background.

A photograph postcard showing Union Pacific (UP) 993, 983 and 987, diesel-electrics, on westbound passenger train No. 101, "City of San Francisco", with steam loco 2867 pushing, near Sherman, WY, 14 cars, 45 mph.

A photograph postcard showing Union Pacific (UP) 994 and 703 diesel-electrics, on westbound passenger train No. 103, "City of Los Angeles", with steam loco 2863 pushing, west of Cheyenne, WY, 12 cars, 40 mph.

A photograph postcard showing Union Pacific (UP) 802, 4-8-4, on passenger train No. 1-28, "San Francisco Overland Limited", near Cheyenne, WY, 20 cars, 50 mph.

A photograph postcard showing Union Pacific (UP) 806, 4-8-4, on mail train No. 6, "Fast Mail", east of Cheyenne, WY, 19 cars, 55 mph.

A photograph postcard showing Union Pacific (UP) 809 and 823, both 4-8-4, on westbound mail train No. 5, "California Fast Mail", leaving Cheyenne, WY, 18 cars, 25 mph.

A photograph postcard showing Union Pacific (UP) 816, 4-8-4, on passenger train No. 2-8, "The Challenger", east of Cheyenne, WY, 20 cars, 50 mph.

A photograph postcard showing Union Pacific (UP) 824, 4-8-4, on passenger train No. 88, "San Francisco Challenger", near Archer, WY, 16 cars. 60 mph.

A photograph postcard showing Union Pacific (UP) 844, 4-8-4, on 1st section of passenger train No. 1-8, "The Challenger", east of Cheyenne, WY, 21 cars, 55 mph.

A photograph postcard showing Union Pacific (UP) 2281, 2-8-2, and 9051, 4-12-2, on westbound freight extra leaving Cheyenne, WY, 86 cars, 15 mph.

A photograph print showing Union Pacific (UP) 2298, 2-8-2, Cheyenne, WY.

A photograph print showing Union Pacific (UP) 2866, 4-6-2, at Cheyenne, WY.