Plate VII.
JS
I!.i
mm
r
Blocks Successively Applied to Produce the Different Shadesin a Flower.
See page 561 .
M ■iji
Machine for Engraving the Cylinders used in “ Machine-printing.
Plate VII.
JS
I!.i
mm
r
Blocks Successively Applied to Produce the Different Shadesin a Flower.
See page 561 .
M ■iji
Machine for Engraving the Cylinders used in “ Machine-printing.