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Reverse protections

There are 3 security features on the reverse of Swiss francs:

1) Serial number

Serial number put in two different palces and two different colors. Serial number is combination of letters and digits.

2) Metallic thread

Metallic thread embedded in the paper. Normally, seen as silver dashes. When put up to the light seen as continous line.

3) Microtekst

A short text about portrayed person, text printed in extremely small size.