essay the 7 Kop denomination value 300 years Romanow-dynasty 1913 horizontal pair from left margin in red colour (Michel number 86), present it concerns an not about contemporary essays but rather about sample copies, the in the year 1928 from of the company autumn & Illig in Frankfurt on M. in the gravure printing process produced were, about the advantages the from of the company developed gravure printing press to to demonstrate (so-called Eckerlin essays, named after the managing director of the company Dr. Eckerlin), rare, photo expertize RPS (2018)