1913 Imperial Russia 300 Years of Romanov dynasty 7kop & Great Britain 1902 KEVII 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 for the British & Russian posts). Scarce two country sample essay.
Estimate: £700 - 850
Sale Terms
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