Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Diapers are no good for baby girls."

Postcard from Mabel to Mrs. M. E. Wise, thanking her for her letter, sending her apologies that Mrs. Wise's father is unwell, and promising to explain why she will be unable to visit Boulder, Colorado until February. The front of the postcard features a photograph of two women standing on a large rock inside a dark cavern. Both women are wearing trousers and t-shirts, and the woman on the right has her hair pulled back into small draped turban. They are illuminated by a light from somewhere on the ground, which also reveals the large rock formations on the cave wall behind them. At their feet is a sign that reads, "Visit Cascade Caverns." The name of the cave, "Tobacco Room," is printed at the top of the postcard.

This report follows a preliminary geophysical investigation that was made in the Colorado-Utah Plateau in search of carnotite ore deposits.

A photograph postcard showing Denver & Rio Grande Western (DRGW) 499, 2-8-2, narrow gauge, with Rocky Mountain Railroad Club excursion train in San Luis Valley, north of Villa Grove, CO, 6 cars, 20 mph.

Report issued by the Bureau of Mines over mining districts in Colorado. As noted in the introduction, "in this report the physical features, climate, and ore deposits of the districts are described, and a brief history of mining and production of lead, zinc, and silver is given" (p. 4). This report includes tables, illustrations, and maps.

A photograph print showing Colorado & Southern (CS) 375, 4-6-2, on No. 8, west of Clayton, NM, 4 cars, 60 mph

A photograph print showing Santa Fe (ATSF) 34, 4 unit diesel, on No. 21, "El Capitan", on Raton Pass between Morley and Wootten, CO, 15 cars, 20 mph

A photograph postcard showing Santa Fe (ATSF) 163, 4-unit diesel on No. 19, "Chief", on Raton Pass between Morley and Wootten, CO, 13 cars, 20 mph.

A photograph print showing Santa Fe (ATSF), 4 unit diesel, on No. 21, "El Capitan", below Wootten, CO, 15 cars, 20 mph

A photograph print showing Santa Fe (ATSF) coaches on No. 21, "El Capitan", on Raton Pass below Wootten, CO, 15 cars.

A photograph print showing Denver and Rio Grand Western (DRGW) 1801, 4-8-4, on No. 2, north of Pueblo, CO, 14 cars, 40 mph

A photograph print showing Denver and Rio Grand Western (DRGW) 7007, 4-8-2, and an 800 class engine on No. 38 east of Denver, CO, 10 cars, 70 mph

A photograph print showing Denver and Rio Grand Western (DRGW) 553, on westbound freight above Plainview, CO, 63 cars. Loco 3616 helping near rear of train. Caboose can be seen in left part of picture.

A photograph print showing Denver and Rio Grand Western (DRGW) 553, on westbound freight above Plainview, CO, 63 cars. Loco 3616 helping near rear.

A photograph print showing Denver and Rio Grand Western (DRGW) 601, 3-unit diesel, on "California Zephyr, above Plainview, CO

A photograph print showing Denver and Rio Grand Western (DRGW) 804, 4-6-2, on No. 9 above Plainview, CO, 3 cars.

A photograph print showing Denver and Rio Grand Western (DRGW) 3616, 2-8-8-2, helping westward freight above Plainview, CO, 63 cars.

A photograph print showing Colorado & Southern (CS) 371, 4-6-2, on No. 8, on passenger extra leaving Castle Rock, CO, 6 cars, 50 mph.

A photograph print showing Colorado & Southern (CS) 2-unit diesel on No. 1, "Texas Zephyr", leaving Larkspur, CO, 9 cars, 45 mph.

A 5 x 7 photograph print showing Denver and Rio Grand Western (DRGW) 801, 4-6-2, and 1203, 2-8-2, on passenger train No. 5, the "The Panoramic", passing through Tunnel #28, on the Denver & Salt Lake line near Pine Bluff, CO. [overhead view]

A photograph print showing Denver and Rio Grand Western (DRGW) 1803, 4-8-4, on No. 1 near Palmer Lake, CO, 12 cars, 35 mph

A photograph print showing Denver and Rio Grand Western (DRGW) 1803, 4-8-4, on No. 1 leaving Palmer Lake, CO, 12 cars, 25 mph

Photograph of the Missouri and Pacific (MoPac) 7014, 2-unit diesel, on "Colorado Eagle", northbound from Colorado Springs, CO, 9 cars, 40 mph

A photograph print showing Santa Fe (ATSF) 3763, 4-8-4, on No. 2, near Larkspur, CO, 7 cars, 40 mph