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Gall Invisible Ink

Gall Invisible Ink

Secret Writing Techniques

Added 9 days ago | 00:04:01 | 302 views

In December 1657 the circle of James Butler (1610-88), Marquess of Ormond, used a recipe they had received from Lord Ogleby, which after testing they found most effective to delude the Cromwellian regime: ‘ye secret that L. Ogleby gaue (...