“Day 5: This set from Doberan, issued in 1921, has very distinctive designs. The typography sort of reminds me of early skateboard deck designs, or even 80's metal DIY flyers.
The set consist of 4 notes, with denominations ranging from 25 Pf to 1 Mk.
The catalog value for the set is around $6. Here you can find more info about this set and other sets from Doberan.”