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egkg1: Choate Bridge
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egkg1: Knitting Machine
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egkg1: Knitting Machine
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egkg1: Scott & Williams Model K
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egkg1: Cams on Knitting Machine
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egkg1: How a flourcscent light bulb is made
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egkg1: Proximity Fuse
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egkg1: Ipswich Mills
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egkg1: Ipswich River Dam
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egkg1: Ipswich River Upper Falls
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egkg1: Ipswich Mills Mural
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egkg1: Ipswich Mills
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egkg1: Gray Door
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egkg1: Smithsonian Marker