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Displaying results 104071 - 104080 of 831881

Film transparency of men pouring concrete, Hoover Dam, June 6, 1933

Date

1933-06-06

Description

Black and white image of Hoover Dam with the following printed text: "First 8 cubic yard batch of concrete being placed in Boulder Dam proper." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of penstock pipes, Hoover Dam, December 10, 1933

Date

1933-12-10

Description

Black and white image of Hoover Dam with the following printed description: "Thirty-foot-diameter-steel-penstock pipe set up from joint assembly at the Babcock and Wilcox Co. Plant." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of bucket used for placing concrete at Hoover Dam, July 18, 1933

Date

1933-07-18

Description

Black and white image of Hoover Dam with the accompanying description: "Placing concrete in block at mid-section of Dam. Eight cu. yd. bucket handled by cableway is in use." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of an evaporation tower, Hoover Dam, June 26, 1933

Date

1933-06-26

Description

Black and white image of Hoover Dam with the following printed description: "Evaporation tower for dam precooling system located on downstream cofferdam. View from Nevada outlet house bench." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of the upstream face of Hoover Dam, February 27, 1935

Date

1935-02-27

Description

Black and white image of Hoover Dam with the following printed description: "Upstream face of the dam as seen from portal of construction tunnel on Nevada side of Black Canyon." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of Nevada turbine gallery, Hoover Dam, June 10, 1936

Date

1936-06-10

Description

Black and white image of Hoover Dam with the following printed description: "View looking upstream in the Nevada turbine gallery. The runner for turbine N-2 has been placed and the wicket gates are about to be set." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of visitors at Hoover Dam, May 30, 1937

Date

1937-05-30

Description

Black and white image of Hoover Dam with the following printed description: "View of Memorial Day crowds waiting to visit the powerplant. Note persons holding tickets ready for guide to collect. Roof of cashier's booth may be seen beyond awning." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of electrical equipment, Hoover Dam, June 24, 1937

Date

1937-06-24

Description

Black and white image of Hoover Dam with the following printed description: "Rotating field for the generator for Unit N5 under erection. Field poles installed ready for testing." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of people standing in tunnel, Hoover Dam, December 27, 1938

Date

1938-12-27

Description

Black and white image of Hoover Dam with the following printed description: "View of 50-foot diameter tunnel below Arizona Tunnel Plug outlet works with Stoney Gate at end of tunnel lowered." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image

Film transparency of power equipment, Hoover Dam, April 1941

Date

1941-04

Description

Black and white image of Hoover Dam with the following description (provided by Special Collections): "View of bank 287.5 KVV transformers along the ramp of the Arizona powerhouse. April 1941." Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image