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F.W. Helmick's List of Counterfeit Notes, Now in Circulation in the United States

Counterfeit Money "G" and Bankers, Merchants and Cashiers Confidential Guide

A. Thompson's System of Detecting Counterfeit, Spurious, Altered and Photograph Ba...

New Security for Protecting Bank Notes from Alterations & Photographic Counterfeits

Observations upon the Method of Bank Note Manufacture

The Universal Bank Note, Draft and Check Detector

United States Counterfeit Detector with Sheet of Engravings

Counterfeit Bank Note Expositer

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