Lot No. 2393

1913 Imperial Russia 300 years of Romanov dynastie, 7 kop and Great Britain 1902 King Edward VII, 1d black (2) ECKERLIN DIE PROOF ESSAYS printed in 1924 on ungummed WATERMARKED paper as sample in the hope of selling Dr. Eckerlin's rotary press process for intaglio printing (developed by Herbst & Illig in Germany) to the British Post and Russian Post. In superb condition. A VERY RARE TWO COUNTRY SAMPLE ESSAY. Photocopy of RPS CERTIFICATE (2018) for similar item of same origin included. 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...”