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  • All fields: Gelatin dry plate negative
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Display: 20

    • [Lower Standard]

    • [Lower Standard]

    • Causeways; Amador County (Calif.);

    • A wooden track built in the middle of a canal; both sides of it have large stones on them. There is a small shack on the shore to the left.
    • Edith Irvine
    • [Meadow Lake Dam Construction]

    • [Meadow Lake Dam Construction]

    • Dams--California; Amador County (Calif.);

    • In the foreground there are a few trees in a body of water. There is a dock on the lower left with poles on top of them. In the background there are many beams and boards (the dam) and trees lining the background.
    • Edith Irvine
    • [Meadow Lake Dam Construction]

    • [Meadow Lake Dam Construction]

    • Dams--California; Amador County (Calif.);

    • A dam is holding up a large body of water towards the left. In the center of the photograph are a few ladders, a large pole with cables stemming from it, and a small building. The background is a rocky, tree-covered hill.
    • Edith Irvine
    • [Gin Poles, Meadow Lake Dam Construction]

    • [Gin Poles, Meadow Lake Dam Construction]

    • Dams--Design and construction; Railroads--Track; Amador County (Calif.);

    • There is a pole with cables stemming from it. A track weaves around the bottom of the photograph with men at the end of it moving a large boulder. A rocky hill with a few trees on the top is in the background.
    • Edith Irvine
    • [Gin Poles, Meadow Lake Dam Construction]

    • [Gin Poles, Meadow Lake Dam Construction]

    • Dams--Design and construction; Railroads--Track; Amador County (Calif.);

    • Men are on the top of tracks, which go over a rocky ridge to the right. In the background are trees and a pole, towards the right, with many cables stemming from it.
    • Edith Irvine
    • [Meadow Lake Area Under Construction]

    • [Meadow Lake Area Under Construction]

    • Dams--Design and construction; Railroads--Track; Scaffolding; Amador County (Calif.);

    • There are tracks, poles with cables stemming from them, and a small building on the left with four pipes coming out of it. On the right of the photograph are beams and boards holding up a pile of large boulders. In the background is a rocky hill...
    • Edith Irvine
    • [Meadow Lake Dam Under Construction]

    • [Meadow Lake Dam Under Construction]

    • Dams--Design and construction; Scaffolding; Amador County (Calif.);

    • Large beams and boards holding a large pile of rocks (the dam). Two men are on a plank on top of the dam. In the lower right there is a puddle of water. In the background are some tracks, people, poles with cables stemming from them, and a rocky...
    • Edith Irvine
    • [Meadow Lake Dam Construction]

    • [Meadow Lake Dam Construction]

    • Dams--Design and construction; Scaffolding; Amador County (Calif.);

    • Large beams held up with large rocks cemented between them (the dam). In the background are poles with cables stemming from them and trees.
    • Edith Irvine
    • [Meadow Lake Dam Construction]

    • [Meadow Lake Dam Construction]

    • Dams--Design and construction; Scaffolding; Amador County (Calif.);

    • A track on the bottom right and left goes into a pile of large rocks. In the background is a pole with many cables stemming from it and a few trees.
    • Edith Irvine
    • [Meadow Lake Dam Construction]

    • [Meadow Lake Dam Construction]

    • Dams--Design and construction; Scaffolding; Amador County (Calif.);

    • Large beams held up with large rocks cemented between them (the dam). There is a small body of water on the lower right with a date written: 6-17-1900. There is a flat rocky bank to the left. In the background are poles with cables stemming from...
    • Edith Irvine
    • [Power House Control Center]

    • [Power House Control Center]

    • Electra Powerhouse (Calif.); Control boards (Electrical engineering);

    • A large piece of machinery covered with meters and controls. Light fixtures in front and to the side of the machine.
    • Edith Irvine
    • [Electra Power House Station Transformer]

    • [Electra Power House Station Transformer]

    • Electra Powerhouse (Calif.); Electric transformers;

    • This is a large piece of equipment with six pieces of tubing coming out of the top. Power transformers at the Electra Power House Station most likely installed when the plant voltage was upgraded from 40,000 volts to 60,000 volts.
    • Edith Irvine
    • [Transformers for Electra]

    • [Transformers for Electra]

    • Electra Powerhouse (Calif.); Machinery--California; Electric transformers--California; Amador County (Calif.);

    • This is a large piece of equipment with cylinder-like protrusions. The insulators (model Locke #348 produced by Fred M. Locke) were installed when the plant voltage went from 40,000 to 60,000 volts just after 1904. The marble slab boxes are oil...
    • Edith Irvine
    • [Electra Power House--D.C. Exciter]

    • [Electra Power House--D.C. Exciter]

    • Electra Powerhouse (Calif.); Machinery;

    • There is a large piece of machinery in a room. There are smaller parts lying to the left of the machine on the floor. There is a bottle sitting on a ledge on the wall beside the window in the background.
    • Edith Irvine
    • [Electra 2000 kw, Five Units Generators]

    • [Electra 2000 kw, Five Units Generators]

    • Electra Powerhouse (Calif.); Machinery; Electric generators;

    • This is a view from the right side of the room, with large pieces of machinery in a line. On a beam on the ceiling there is a sign that reads, "Niles-Bement-Pond Co. Crane Department, Phila, PA, U.S.A.; Order No. 1147 June 1900; Capacity 6000 LBS."...
    • Edith Irvine
    • [Electra 2000 kw, Five Units Generators]

    • [Electra 2000 kw, Five Units Generators]

    • Electra Powerhouse (Calif.); Machinery; Electric generators;

    • This is a view from the left side of the room, with large pieces of machinery in a line. On a beam on the ceiling there is a sign that reads, "Niles-Bement-Pond Co. Crane Department, Phila, PA, U.S.A.; Order No. 1147 June 1900; Capacity 6000 LBS."...
    • Edith Irvine
    • [Road to Electra]

    • [Road to Electra]

    • Electra Powerhouse (Calif.); Railroads--Track; Amador County (Calif.);

    • A large building is surrounded by brush and trees, to the right and on the hill in the background. There are power poles and a track along the left side of the house.
    • Edith Irvine

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