HENGELO - Jan Ketzer's mahjong stamps are now collector's items. Individual stamps of 0,44 euro are presented on sites like eBay or Marktplaats for some 1.50 euro. The stamps have been released to financially support the World Mahjong Championship 2010 and Mr. Ketzer's mahjong club.

Jan tells that initially he refused to send just one copy to a collector. "But now, I understand collectors better, so I send them one if they want to. And they think it is just great to get the parcel which is stamped with… a mahjong stamp."

Recently, in the Netherlands an association of personal stamps was founded. During its initial meeting, Jan Ketzer had a stand where quite some stamps were sold.

Jan has made advertisements on sites like eBay and Marktplaats. "The interest is not exactly massive, yet I got some orders: from the US, from Russia and some from Holland. By the way: the stamps on the occasion of the OEMC 2005 are now sold for 15 euro a sheet. And the 2008 Christmas mahjong stamps now yield the double."