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1969 3M Sound on Slide system


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Submitted for your "March of Time: How Far Have We Come?" file. "Techmoan" has friends all over, and a Finn sent him a corporate-level slide projector with a recording system. Imagine yourself at a district conference where new products are being discussed/rolled out, and you can comment on each image/product. Just the thing for a "mid century corporate" collector or Ye Olde Antique Shoppe.;)

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