Cheating and Fraud ii.B
·25 min·2 clips
Invisible iron-based ink can be made to reappear using tannin, as the iron salt penetrates deeper into the paper fibers.
As heard by us
Forgery is treated as a problem of careful inspection, not theatrics.
Cheating and Fraud ii.B treats false documents as a matter of patient inspection. When the content does not settle the question, it shifts to the document's exterior form: the paper, its watermark, grease spots, erased writing, and chemical signs.
Why you'd press play
If you want a field manual for reading forged paper, start here.
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