A noticeably rarer denomination than the 1/2 and 2 marks of this issue. A very nice uncirculated piece.
State of preservation confirmed by a good PMG note.
Series B stamped on the reverse at the top of the bill. Numbering variant starting with 8....
We invite you to learn more about the subject of low denomination variants of the 1916 issue of Polish marks (i.e. 0.5mp ; 1mp ; 2mp), on our channel on YT, there comprehensive information on the subject, as well as observations and theses on the possibility of the existence of new unknown variants of these banknotes : YT - Numismatic Cabinet D. Marciniak