The Signagraph machine is a unique and intriguing item. It was meant as an early office labor saving device because it allowed a user to sign from five, ten, or twenty checks at a time. The machine follows the motion of the hand of the user and all the other pens write as one. The Signagraph had eyedropper of lever-fill pens that were mounted into a wooden carrying case. There were some Signagraphs in which …
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