Netherlands unique stamp - 0 denomination valid just for a day.

Netherlands unique stamp.

*World's first and only stamp with 0 (zero) denomination*.

*World's only stamp which was valid for postage only for 1 day*

YES

You read that right -

Description 

Issue date January 1998

*Netherlands Post has issued the first Zero Cent Stamp which allowed people to use the stamp on a particular day i.e. the stamp was valid for only one day 29 June 1998.* 

*In January of 1998, the Dutch PTT distributed their new price list brochure to every household in the Netherlands. On the inside, a sheet with a 0 cent stamp was glued to the back of the price list. It will be valid for one day only 29 June 1998 : when the Dutch PTT Post will be listed at the Amsterdam Stock Exchange for the first time, and the 0 cent stamp could be used as a 80 cent stamp.*

 _The text that accompanied the stamp was: "This stamp is worth 80 cents on the day PTT Post goes to the stock exchange. This little jewel can than be used as a stamp for letters and cards up to 20 grams with a destination within the Netherlands."_