“Day 37: This is a 2 note set issued in 1921 by the city of district of Eisenberg.
The denominations included in the set are 20 Pf (green) and 50 Pf (brown). There is a rare variety where the 20 Pf note was printed on brown paper instead of green paper, which is worth about $150.
The catalog value for this complete set is around $4. Here you can find more info about this set and others.”