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Frisket Button

A button screwed on the off side of the tympan near the bottom, to turn over the frisket and keep it close to the tympan in turning down.

This button is only used when superior work is printing: it prevents the sheet from touching the form partially, and also from slipping, by confining it flat to the tympan, and thus tends to make better work, and prevent waste; but it cannot be used where despatch is required.

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