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results 41-60 of 451 item(s)  page 3 of 23 : ( <<  1  2  3  4  5  6  7  8  9  10  >> ) :: previous : next
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The Noah's ark primer (S-V)
41. The Noah's ark primer (S-V)
The Noah's ark primer (K-N)
42. The Noah's ark primer (K-N)
The Noah's ark primer (cover)
43. The Noah's ark primer (cover)
Racks and troughs used in salmon hatchery, unidentified location, Alaska, ca. 1905
44. Racks and troughs used in salmon hatchery, unidentified location, Alaska, ca. 1905
Steam shovel used in construction of the railroad between Rockport and Newhalem, August 11, 1920
45. Steam shovel used in construction of the railroad between Rockport and Newhalem, August 11, 1920
Timber structures used for early exploration work at the Ruby Dam site, October 19, 1919
46. Timber structures used for early exploration work at the Ruby Dam site, October 19, 1919
Steam shovel at rocky curve overlooking the Skagit River, used for building the railroad between Rockport
47. Steam shovel at rocky curve overlooking the Skagit River, used for building the railroad between Rockport and Newhalem, August 11, 1920
An area of the Skagit River called Rip Raps, site of the Ross Dam, June 28, 1919
48. An area of the Skagit River called Rip Raps, site of the Ross Dam, June 28, 1919
Incline railroad used for moving gravel, east of the dam site, October 7, 1924
49. Incline railroad used for moving gravel, east of the dam site, October 7, 1924
Hoist used for hauling gravel up slope next to the dam site, August 28, 1924
50. Hoist used for hauling gravel up slope next to the dam site, August 28, 1924
Buildings and construction supplies used for Diablo Dam Powerhouse, July 1, 1931
51. Buildings and construction supplies used for Diablo Dam Powerhouse, July 1, 1931
Large pipes used in construction of Diablo Dam Powerhouse, April 2, 1931
52. Large pipes used in construction of Diablo Dam Powerhouse, April 2, 1931
Large pipes used in construction of Diablo Dam Powerhouse, April 2, 1931
53. Large pipes used in construction of Diablo Dam Powerhouse, April 2, 1931
Reflector Bar on the Skagit River used to supply sand and gravel for construction of the Diablo Dam,
54. Reflector Bar on the Skagit River used to supply sand and gravel for construction of the Diablo Dam, March 1928
Incline railway used to transport railroad cars and construction workers to Diablo Dam construction site,
55. Incline railway used to transport railroad cars and construction workers to Diablo Dam construction site, May 23, 1928
Winston Brothers Construction Company workers camp, Diablo Dam site, Mary 12, 1928
56. Winston Brothers Construction Company workers camp, Diablo Dam site, Mary 12, 1928
Man standing inside Larner-Johnson flow control valve during installation at Gorge Dam Powerhouse, August
57. Man standing inside Larner-Johnson flow control valve during installation at Gorge Dam Powerhouse, August 22, 1923
Scroll case and Larner-Johnson flow control valve in unit no. 1 under construction, Gorge Dam Powerhouse,
58. Scroll case and Larner-Johnson flow control valve in unit no. 1 under construction, Gorge Dam Powerhouse, August 13, 1923
Construction activities at Larner-Johnson flow control valve and scroll case in power generating unit
59. Construction activities at Larner-Johnson flow control valve and scroll case in power generating unit no. 1, Gorge Dam Powerhouse, August 10, 1923
Tailrace site, Gorge Dam Powerhouse, April 1, 1924
60. Tailrace site, Gorge Dam Powerhouse, April 1, 1924
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results 41-60 of 451 item(s)  page 3 of 23 : ( <<  1  2  3  4  5  6  7  8  9  10  >> ) :: previous : next
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