MICHEL - Understanding cancellations 2020 - Stamp catalogue

Language: German. In an entertaining way, Oskar Klan, MICHEL Editor-in-Chief, provides detailed yet compact expert knowledge about a philatelic topic: postmarks/cancellations on stamps. Impact on the value of a stamp, identifying cancellation forgeries, examples, the history of cancellations from 1660 and until today and much more about postmarks/cancellations. 136 pages