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...that another and closely similar communication in invisible ink, now lost, followed six...
The “Ink” refers to invisible ink, or “stain” (see Culper, Jr., to...
For Townsend’s first request for invisible ink, see Culper to John Bolton, “June 31” (...
Townsend is referring to invisible ink (see
...that document. Townsend acknowledged receipt of the invisible ink, which employed a stain, in...
written in invisible ink and rendered visible by Bendikson through the use of ultraviolet...
...point was apparently a communication in invisible ink, which is no longer decipherable; see...
...forward correspondence, much of it originally in invisible ink, from Deane and Franklin to the...
...the use by the Continental Congress of an invisible ink he had invented. As secretary of...
...: unidentified document explaining the use of invisible ink (not found); decipherment,...