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acrylic prints tool acrylic prints historic acrylic prints historical acrylic prints history acrylic prints illustration acrylic prints diagram acrylic prints engraving acrylic prints copperplate acrylic prints copper plate acrylic prints press acrylic prints 17th century acrylic prints 1600s acrylic prints middle ages acrylic prints medieval acrylic prints roller press acrylic prints

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Historical diagram showing "wheels that groove the lead" at a rolling and slitting mill for lead strips. From Zonca's Nuovo Teatro di Machine et Edificii, c. 1607. This is a diagram of an engraver's press for printing drawings with engraved copper plates. The copper plate rests between the board (C) and the backing felt (D). Wooden bearing blocks (B) hold the rollers firm. In Zonca's roller-press, the lower roller is driven in the opposite direction to the upper one by the friction of the board rolling over it. Illustrations improved in the 16th century thanks to the roller-press and copper-plate, which could bear more detail.