J.A. Whipple
1856
The Suppression of Counterfeiting

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Published in the Bankers' Magazine, and statistical register", Volume 10, Part 2, 1856, p.802-803
 
The Committee appointed by the Executive Committee, March 15, 1854, to examine into the subject of counterfeiting by crystallotype process, have attended to the duty assigned to them, and respectfully report:
 
That, soon after their appointment, they caused experiments to be made by Mr. Whipple, the celebrated Daguerreotypist of this city, the results of which warranted them, in their judgment, in stating, verbally, to the Executive Committee: "We have no doubt that, by the crystallotype process, bank-notes can be so well copied as to be passed into the bank issuing the original note as certainly as the original itself." " But that printing the note in fine red letters, all over its surface, as a ground-work, and then printing on that the note proper, in black ink, in the usual way, would be an effectual bar against this mode of counterfeiting bank-notes."
 
LL/34426