“Day 69: This is a 6 note set issued in June 1921 by the Evangelical Church of Breslau. The denominations included in the set are 25 Pf x 3 and 50 Pf x 3.
There are small letters on the front side of each note that spell out the name "L U T H E R" when placed in the correct order.
The catalog value for this complete set of 6 notes is around $15 - $20. Here you can find more info about this and others.”