How to find usOur offices are located in the centre of Düsseldorf, not far from the Central Train Station.
Hepburn stampsFelzmann auctioned three of the five famous Audrey Hepburn stamps. The most valuable modern postage stamp in the world.
Selling or auctioning stamps?The advantages of selling your stamps. Which selling model is most suitable for you?
Selling a coin collectionWhy not benefit from the experience of our numismatists? It will be in good hands with our experienced experts.
Having stamps evaluatedOur stamp experts will gauge the value of stamp collections free of charge and free of obligation.
Stamp cataloguePresenting your treasures to an international audience. Our high-quality stamp catalogues enjoy great popularity among dealers and collectors alike.More information
Coin catalogueOur high-quality catalogues never fail to show coins, medals and medallions in their best light. The coin catalogue is dispatched to collectors and dealers worldwide.More information