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Displaying results 374731 - 374740 of 869230

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

Film transparency of a Winged Figure of the Republic statue, Hoover Dam, circa 1930s

Date

1931 to 1936

Description

Black and white image of one of the Winged Figures of the Republic statues at Hoover Dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

Image