Backprint

A backprint is deliberate printing on the back of a stamp.

Fiume used it as a control to confirm genuineness. Russia has printed the back of a cardboard stamp that was intended to be used as money.

The US and Nicaragua, among others, have used backprints to provide more information on the stamp in question. That printing has been done on top of the gum and is lost once a used stamp is soaked.

 File:Montenegro backprint.jpg|Montenegro under Italian occupation. 

See

 * Adsons, New Zealand stamps with ads on their backs
 * Backstamp
 * Setoff

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