Overhead Projector Cryptography Overhead projector, Projector, Overhead

Jun 3, 2016 - Back in the day, if you wanted to show an image to a large audience, you would use an overhead projector. This would shine a light through a transparency, which is a clear sheet with a black drawing

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Epson EB-S41 / EB-X41 - Electrosolutions

Passed the five minute bulb test. Unit comes with both 3M and Highland transparency film. Cord is attached to unit. please see photos for any further

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HamiltonBuhl 9013EDC Open Head Overhead Projector 9013EDC B&H

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V11H740052, Epson EB-695Wi Ultra-Short Throw Interactive WXGA 3LCD Projector, Short Throw/Ultra-short Throw

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