Mr. Marshal, of Streatham, has invented a calico-printer's block, by
which two different colours can be printed at one stroke of the block;
and thus a new style can be executed, and the finest designs completed,
without shewing any adjoining mark on the cloth. In a striped pattern,
for example, the stripes are formed of slips of copper let into the
wood, and so contrived, that a certain number of them can rise above, or
sink below, the surfaces of the others, or form a level surface with
them at pleasure; so that if a black and red colour are to be printed at
once on the cloth, the red stripes being furnished with colour from the
sieve by turning a screw, are drawn down with the others on the black,
whilst the black stripes remaining are furnished with colour. Both parts
of the block, being thus supplied with their respective colours, are
then brought to a level, by turning a screw with the left hand, till the
two regulating pins near the screw are upon a level and in a line. The
block is then laid on the cloth, and struck with the printer's mallet in
the usual manner, delivering the impressions of both colours at once
upon the cloth. Patterns so delicate as to be impossible to be worked in
the common way, can thus be perfectly executed and with great facility.

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