Latest from Marketplace Contributor

• May 14, 2014

  1930: Overhead Projector.

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• May 14, 2014

  1925: Film Projector.

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• May 14, 2014

  1905: Stereoscope.

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• May 14, 2014

  1924: Teaching Machine.

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• May 14, 2014

  1801: Pencils.

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• May 14, 2014

  1801: Chalk Board.

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• May 14, 2014

  1870: Magic Lantern.

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• May 14, 2014

  1836: McGuffey Reader.

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• May 14, 2014

  1450: Horn Book.

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• May 14, 2014

  1440: Gutenberg Press.

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