Workers showing a method of pipe bending at the Crane Company, ca.1920
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资源简介：
Photograph of workers showing a method of pipe bending at the Crane Company, ca.1920. Several workers stand around a square platform bearing an elevated metal pipe, which bends in the middle. A ladder stands against a wall at left, and several others can be seen at right amidst a device-filled work station.
创建时间：
2024-01-31
