Do you know the most expensive Belgian stamp?
In Belgium, the rarest stamp is the inverted Dendermonde. Only 17 of them are known to date (15 mint and 2 cancelled). These stamps were issued and sold in 1920. The particularity of these stamps is that their center is inverted compared to their frame.
Where does this mistake come from?
When stamps are printed, the staff takes special care to ensure that all stamps that come out are perfect. In most of the world’s printing houses, they even go so far as to check each sheet by hand!
Sheets that are not fully compliant are destroyed with proof of destruction. As a matter of fact, let’s keep in mind that a stamp is a currency in itself. This is the reason why varieties are so sought-after because they were created by mistake and have managed to get through careful checking.
However it happens sometimes that a sheet still escapes this checking process. This is how it becomes the holy grail for a collector. This was the case of this Inverted Dermonde.
Don’t hesitate to check your stamp collections, you may have a treasure at home! The best way to check its real value: have a look at what has been sold on www.delcampe.net, the largest marketplace for collectors!