The aim of this website is the exchange of used postal stamps.
All my stamplists are based on the numbering used in the Yvert & Tellier Catalogues.
The Belgian Lists also mention the numbering used in the Official Belgian Catalogue.
All exchanges are based on the prices in the Y & T Catalogues.
For those who don't have these catalogues, a part of my stamps is also available on Colnect : https://colnect.com/nl/collectors/collector/komod7