IMPROVED MODE OF PRODUCING BANK NOTES, CHEQUES, AND OTHER DOCUMENTS
Year: 1879

page_text: PROVISIONAL SPECIFICATION left by John Thompson at the Office of the
Commissioners of Patents on the 20th March 1879. A communication from
abroad by Samuel Thompson and Thomas Wilson Garlick, both of Sydney,
New South Wales.
" AN
JOHN THOMPSON, of Basinghall Street, in the City of London, Merchant.
IMPROVED MODE OF PRODUCING BANK NOTES, CHEQUES, AND OTHER DOCUMENTS."
[A communication from abroad by Samuel Thompson and Thomas Wilson Garlick,
both of Sydney, New South Wales.]
It is well known that the photographic process offers facilities to the forger for
the fraudulent reproduction of bank notes, cheques, and other documents used in
commerce as a circulating medium.
To render photography inapplicable to such a purpose, it is now proposed to produce
bank notes and other like documents by printing the same in various colors of the
spectrum, such colors being so arranged to complete the device that if a photo-
graphic negative is attempted to be obtained, a part or parts only of the device
will be reproducible.
In carrying out this Invention either of the following plans may be adopted;
(1.) Take a white ground and print upon it either a violet, yellow, pink, blue, or
green color as a ground. Upon the tinted ground print the desired device in any
of the colors above named, or any of their intermediate tints that will contrast
sufficiently with the ground color and produce a harmony of color, and which will
also produce a non photographic print.
(2.) Take a white ground and print upon it either a yellow, red, blue, green,
violet, or indigo color as a ground. Upon the tinted ground print the desired
device in any of the colors above named, or any of their intermediate tints that
will contrast sufficiently with the ground color, and which will produce a non
photographic print.
3. Take a white ground and print upon it either blue, yellow, red, green,
indigo, or violet color as a ground color. Upon this tinted ground print the
desired device in any of the colours above named, or any of their intermediate tints
that will contrast sufficiently with the ground color, and which will produce a non
photographic print.
4. Take a green ground and print upon it either an orange, yellow, red, blue,
or black open ground. Upon this ground print the desired device in any of the

page_text: colors just named, or any of their intermediate tints which will contrast with the
ground colors, and which will produce a non photographic print.
5. Take a yellow ground and print upon it either a red, green, orange, blue,
indigo, or black open ground. Upon this ground print the desired device in any
of the colors just named, or any of their intermediate tints that will contrast with
the ground colors, and which will produce a non photographic print.
6. Take a red ground and print upon it either a violet, indigo, blue, green,
yellow, black, or white open ground. Upon this ground print the desired device
in any of the colors just named, or any of their intermediate tints that will
contrast with the ground colors, and which will produce a non photographic
print.
7. Take an orange ground and print upon it either a red, indigo, blue, green,
yellow, or black open ground. Upon this ground print the desired device in any
of the colors just named, or any of their intermediate tints that will contrast with
the ground colors and which will produce a non photographic print.