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Gold Indelible Ink
Make two solutions as follows:-
1. Chloride of
gold and sodium
...... 1 part
Water
........ 10 parts
Gum
..
.... 2 parts
2. Oxalic acid
....
1 part
Water
.
....
5 parts
Gum
....
... 2 parts
The cloth or stuff
to be written on should be moistened with liquid No. 2. Let dry, and then
write upon the prepared
place with liquid No. 1, using preferably a quill
pen. Pass a hot iron over the mark, pressing heavily.
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