DC -- Natl Museum of American History -- Exhibit: Power Machinery:
[1] SIAHPO_120212_02.JPG
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[2] SIAHPO_120212_04.JPG
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[3] SIAHPO_120212_07.JPG
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[4] SIAHPO_120212_10.JPG
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[5] SIAHPO_120212_18.JPG
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