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["Downstream Face Of Boulder Dam"]

Postcard of the "Downstream Face Of Boulder Dam". Mountains and canyons at top of photo, dam at center, downstream flow of water at bottom. Black text on back of postcard reads: "For Correspondence Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

[Cardboard box that contained eighteen postcards of Boulder Dam]

Cardboard box made similar to an envelope that contained seventeen postcards that were apparently purchased as a set. The front of the box has brown text that reads: "Boulder Dam [top, center] Word's Most Impressive Engineering Spectacle Center of a Magnificent Scenic Wonderland 18 Miniature Post Cards from Original Photographs". On left side of box front is a drawing of the dam, and on the right side is a drawing of canyons. The back of the box has text in brown that reads: "From [line] To [lines]" and in a rectangular box top, right "Postage 1 1/2[cents] Seal With Stamp". Text written under flap: "Issued By Boulder Dam Service Bureau Boulder Theatre Building Boulder City, Nevada Official Motion Pictures, Original Photographs, Souvenirs and Authentic Booklets".
Date: unknown
Creator: unknown
Object Type: Physical Object
System: The Portal to Texas History

[Postcard image of "Lake Mead From Observation Point Boulder Dam"]

Postcard image of "Lake Mead From Observation Point Boulder Dam" as written in white text at bottom right corner of postcard. Two automobiles are parked near the rock ledge of the point. Two people can be seen leaning near the ledge. Large body of water with mountains in background. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

["Aerial View of Boulder Dam"]

Postcard image of an "Aerial View Of Boulder Dam" showing the semi-circular dam with cars on highway at top. Two cylinder shaped extensions radiating from either side of main portion of dam. Smaller roadways cross-cross in top right. Cement parking area on left. The canyon extends vertically across the center of the postcard. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

[Postcard image of the "Boat Landing and Bathing Beach Boulder Dam"]

Postcard image of the "Boat Landing and Bathing Beach Boulder Dam". The image shows a sandy beach area from bottom left horizontally to center right with eight automobiles parked on right side of photo. Several wooden pavilions and buildings line the water edge. Boats are parked next to buildings in center. Several boats out in the water. Mountains in background. Black text on back of postcard reads: "For Correspondence Post Card Address [in black line rectangle] Postage 1 [cent]". A decorative black line with JCB (?) at bottom, separates message and address.
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

["Power Line Leading From Boulder Dam To Los Angeles"]

Postcard image of the "Power Line Leading From Boulder Dam To Los Angeles" as written in white text near bottom right corner of postcard. The image shows a highway with car approaching (right). The large metal structures that support the power line can be seen from right center to left center with desert land in foreground and mountains in left background. Black text on back of postcard reads: "For Correspondence Post Card Address [in black line rectangle] Postage 1 [cent]". A decorative black line with JCB (?) at bottom, separates message and address.
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

["Site of Boulder Dam"]

Postcard image of the "Site of Boulder Dam. View 1931" as written in black text at bottom center. The image shows tall rock canyon to left right and center background with dam waters in center. Black text on back of postcard reads: "For Correspondence Post Card Address [in black line rectangle] Postage 1 [cent]". A decorative black line with JCB (?) at bottom, separates message and address.
Date: 1931
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

["Upstream Face Of Boulder Dam"]

Postcard image the "Upstream Face Of Boulder Dam" as written in white text near bottom right of postcard. Observation Point is in the foreground. The dam is in the center of the photograph. There is a boat cruising through the water near center right (wake of water seen behind boat). Canyon mountains in background. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: 1925/1935
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

["Downstream Face of Boulder Dam At Night"]

Postcard image of the "Downstream Face of Boulder Dam At Night" as written in bottom right corner of the postcard. Darkness around the spotlighted area of the dam (center of photo). Black text on back of postcard reads: "For Correspondence Post Card Address [in black line rectangle] Postage 1 [cent]". A decorative black line with JCB (?) at bottom, separates message and address.
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

["Terrazo Floor In Boulder Dam Powerhouse"]

Postcard image of the "Terrazo Floor In Boulder Dam Powerhouse" as written in white text in top right corner. The floor has a unique patterned circle near center with a man leaning to the outside of the circle on center right of photo. Metal rail extends from left edge to near center of photo. Metal vertical ladder on other side of rail. Cement wall in background. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

[Postcard image of "Lowering Box Car Of Power House Machinery"]

Postcard image of "Lowering Box Car Of Power House Machinery Via Government 150-T On Cableway, Boulder Dam". Cable at top of photo with wires supporting a platform carrying machinery. Dam wall in background. Canyon mountains in distance. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

[Postcard image of the "Visitors Gallery Within Boulder Dam. Leading From Elevator Shaft to Power House"]

Postcard image of the "Visitors Gallery Within Boulder Dam. Leading From Elevator Shaft to Power House" as written in white text at bottom center of postcard. Several people can be seen standing at the end of the tunnel-like gallery. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

[An "Aerial View of Boulder Dam" and "Lake Mead"]

Postcard image of the "Aerial View of Boulder Dam And Lower Basin Of Lake Mead" as written in white text in bottom left corner of postcard. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

["Nevada Wing Of Boulder Dam PowerHouse"]

Postcard image of the "Nevada Wing Of Boulder Dam PowerHouse" as written in white text in bottom right corner of postcard. The interior of the powerhouse focuses on the five turbines in center of photograph. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

[Postcard image of "Visitors Waiting For Elevator To Boulder Dam Powerhouse"]

Postcard image of "Visitors Waiting For Elevator To Boulder Dam Powerhouse" as written in white text in bottom right corner of postcard. A line of people are inside of a covered area that leads to a tall cement structure on right of photo. Street on left with cars parked on both sides of the road. A round shaped cement building is in the right background. Canyon mountains in distance extend from left to center of postcard. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History

["Boulder City, Nevada"]

Postcard image of the city of "Boulder City, Nevada" as written in the bottom left corner of the postcard. Street (with car parked on side of street) in foreground intersects with another street on right. Mountains in background. Black text on back of postcard reads: "Message Post Card Address [in black line rectangle] Postage 1 [cent]".
Date: [1925..1935]
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History
Las Vegas Area (ARMS-II) (open access)

Las Vegas Area (ARMS-II)

From Abstract: "An Aerial Radiological Measuring Survey (ARMS) of the Las Vegas area was made for the Civil Effects Test Operations, Division of Biology and Medicine, U.S. Atomic Energy Commission, by Edgerton, Germeshausen & Grier, Inc., between May 21 and June 23, 1961. The survey was part of a nationwide program to measure present environmental levels of gamma radiation. Approximately 6000 traverse miles were flown, at an attitude of 500 ft above the ground, in a 100-mile square centered near Las Vegas. The EG&G ARMS-II instrumentation was used in the survey."
Date: October 1961
Creator: Guillou, R. B.; Hand, J. E. & Borella, H. M.
Object Type: Report
System: The UNT Digital Library
Operation of Electrolytic Manganese Pilot Plant: Boulder City, Nevada (open access)

Operation of Electrolytic Manganese Pilot Plant: Boulder City, Nevada

From Introduction: "This report records a chapter in the history of the development of an electrolytic manganese industry in the United States."
Date: 1946
Creator: Jacobs, J. H.; Hunter, J. W.; Knickerbocker, R. G.; Yarroll, W. H.; Churchward, P. E.; Lewis, R. W. et al.
Object Type: Report
System: The UNT Digital Library
Bureau of Mines Development of Titanium Production Technology (open access)

Bureau of Mines Development of Titanium Production Technology

From Abstract: "The development and status of technology for producing titanium from U.S. resource materials are summarized in this Bureau of Mines report."
Date: 1987
Creator: Henry, J. L.; Stephens, W. W.; Blue, D. D. & Maysilles, J. H.
Object Type: Report
System: The UNT Digital Library
[Letter from Julia A. Barr to the Moore family, December 3, 1888] (open access)

[Letter from Julia A. Barr to the Moore family, December 3, 1888]

This item is from the Charles B. Moore Collection. It is written by Julia A. Barr, Henry and Charles Moore's cousin. In the letter, Julia updates the Moore family on the happenings in Jerseyville, Illinois and the news includes: a dialogue about meeting cousin George Wilson in Eureka Springs, Arkansas while on a trip there, a discussion about the people that accompanied here on the trip and how long she stayed, details concerning the people she meet in Eureka Springs, a conversation about Seella, her two children, and Polly, a dialogue about their helper who was discharged over a year ago and how they are getting along without him, an update on the bountiful crops and how good rain has made it possible for people to get out of debt, a discussion about "Aunt" Sally Smith and Uncle Abner's family, a dialogue about Sottie Knaff's daughter, details about the Goodrich family, an aside about the town of Jerseyville, a dialogue about Mrs. O. P. Powell's children, a discussion about Wilson Cross and Ida Barr Cross, details about Fannie and her love for entertaining, updates on family, a dialogue about Barr's California trip and the places they stopped at along the …
Date: December 3, 1888
Creator: Barr, Julia A.
Object Type: Letter
System: The UNT Digital Library
Utilization of Three Kids Manganese Ore in the Production of Electrolytic Manganese (open access)

Utilization of Three Kids Manganese Ore in the Production of Electrolytic Manganese

Report issued by the U.S. Bureau of Mines regarding specific manganese ore from Nevada and its use in electrolytic production. The development processes and methods are presented. This report includes tables, maps, illustrations, and photographs.
Date: June 1945
Creator: Allen, Glenn L.; Jacobs, J. H.; Hunter, J. W. & Sillers, F., Jr.
Object Type: Report
System: The UNT Digital Library
Investigation of the Yellow Pine Zinc-Lead Mine, Clark County, Nevada (open access)

Investigation of the Yellow Pine Zinc-Lead Mine, Clark County, Nevada

Report issued by the Bureau of Mines regarding studies conducted on zinc-lead mines in Clark County, Nevada. Physical qualities of the mine, equipment used, and methods of sampling are presented. This report includes tables, and maps.
Date: December 1949
Creator: Geehan, Robert W. & Benson, Willmar T.
Object Type: Report
System: The UNT Digital Library
Alumina Miniplant Operations: Separation of Aluminum Chloride Liquor from Leach Residue Solids by Classification and Thickening (open access)

Alumina Miniplant Operations: Separation of Aluminum Chloride Liquor from Leach Residue Solids by Classification and Thickening

Report issued by the Bureau of Mines over recovery methods of alumina through leaching of kaolin clay. The materials, equipment, and procedures used are discussed. This report includes tables, and illustrations.
Date: 1983
Creator: Sorensen, Roy T.; Sawyer, Dwight L., Jr. & Turner, Theodore L.
Object Type: Report
System: The UNT Digital Library
[Letter from Ray A. Gano to Eduardo Morga - 1978-02-06] (open access)

[Letter from Ray A. Gano to Eduardo Morga - 1978-02-06]

Letter from Ray A. Gano to Honorable Eduardo Morga, National LULAC President, dated February 6, 1978, and printed on League of United Latin American Citizens latterhead. The subject of the letter is the National LULAC Convention in Las Vegas. Gano expresses concern over the lack of planning and preparation for the convention and suggests that Arizona's Phoenix Council be put in charge of the event.
Date: February 6, 1978
Creator: Gano, Ray A.
Object Type: Letter
System: The Portal to Texas History