“Day 96: This is a 4 note set issued October 1921 in the city of Bentheim. The denominations included in this set are 10 Pf, 25 Pf, 50 Pf and 1 Mk.
Due to each note being individually scanned, its difficult to tell how much smaller these notes are than the typical piece of Notgeld. Each of these notes is roughly 1.5" x 2" (38mm x 55mm), or about double the size of a standard U.S. postage stamp. This is about 1/3 the size of the smallest standard Notgeld pieces.
The value of this complete set of 4 notes is around $8 - $10. Here you can find more info about this set and others.”