pictures of pretzels on stamps

Beim Katalogisieren der Zeitschrift "Die Briefmarke" des Verbands österreichischer Philatelistenvereine (Signatur B 188846) bin ich auf die Website askphil gestoßen und habe dort diesen netten Absatz gefunden: "One person collected pictures of pretzels on stamps in addition to saving stamps of his own country. He was very proud to have every stamp ever issued that showed a pretzel. There were three of them in the entire world. It took him a lot of work to find those three but no one ever doubted that he had a complete collection".