File:Large pipe elbows for the Army are formed at Tube Turns, Inc., by heating lengths of pipe with gas flames and forcing them around a die, Louisville, Ky. LCCN2017878371.jpg
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Size of this preview: 749 × 600 pixels. Other resolutions: 300 × 240 pixels | 600 × 480 pixels | 959 × 768 pixels | 1,279 × 1,024 pixels | 2,558 × 2,048 pixels | 9,214 × 7,376 pixels.
Original file (9,214 × 7,376 pixels, file size: 2.62 MB, MIME type: image/jpeg)