![Overprint](http://www.oocities.org/Heartland/Plains/1466/overprnt.gif) OverprintInk appled to a stamp to commemorate some special event or to change the use of the stamp, is known as an overprint.
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![Surcharge](http://www.oocities.org/Heartland/Plains/1466/surcharg.gif) SurchargeA stamp which has had a new value printed on it is said to be surcharged. Some frugal countries will surcharge their old stamps for re-use rather than destroying them, thus avoiding waste.
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