1926: ”30 FILLER MAGYARORSZAG” or ”50 FILLER” showing the Matthias Cathedral ECKERLIN ESSAYS printed around 1926 on ungummed paper, four different colours as sample in the hope of selling Dr. Eckerlin's rotary press process for intaglio printing (developed by Herbst & Illig in Germany) to the post of Hungary. Very fine condition. RARE SAMPLE OF THIS FAMOUS PRINTER. Similar essay by this company are known for Canada, these are described in an October 2002 articles of the philatelic magazine ”Maple Leaves”: ”Dr. Eckerlin, was director of Herbst & Illig of Frankfurt-am-Main, Germany. In 1928, Dr. Eckerlin contacted Treadway of ABN for purposes of promoting a proprietary rotary intaglio printing process that was faster and cheaper than steel engraved printing...”