Technology revolutions that are gone
Before there were photocopiers, scanners and printers, there was the Ditto Machine (a.k.a. spirit duplicator), produced by the Illinois-based Ditto Corporation. Originally introduced in 1923, the Ditto Machine was a printing method that transferred ink onto a master copy made of smooth, waxy paper. An alcohol-based fluid (hence “spirit”) was then applied to transfer the image to a copy. Primarily used by schools and churches, the Ditto became less and less commonplace as other copying technologies were brought to market.
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The best thing about taking a test in school was the smell of the Ditto copies. I can smell it now.
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