ANTI-FORGERY INVENTION
A mcssngo from Prague to tho "Na. tional Tidende" states thnt » method has been discovered of making more difficult the passing of forged Hank notes. The invention consists of embedding in the paper on which bank notes are rented quantities of fine steel and nickel particles. Such paper responds to tho attraction of a magnot, and nnyono can thus easily test tho genuinoness of a note.
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https://paperspast.natlib.govt.nz/newspapers/DOM19201204.2.112
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Dominion, Volume 14, Issue 60, 4 December 1920, Page 14
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68ANTI-FORGERY INVENTION Dominion, Volume 14, Issue 60, 4 December 1920, Page 14
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