Magna Doodle

In the mid-1970s, Japanese engineers created the dustless chalkboard — a product they would market as the Magna Doodle. Much like its cousin the Etch A Sketch, the Magna Doodle used dark magnetic dust behind a slate that was drawn up to the surface of a gray board by a plastic pen. An erasable arm swept the board clean, making it a perfect sketching platform for those with a dislike of chalk dust.

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