1 1/4 piastre on 25 Pf yellow orange and 10 para on 5 Pf green together on postal stationery envelope 1 B properly franked as registered letter from Const. 26 / 4 90 to Bremen (arrival postmark from 29.4.90). Except for a small perforation fault at the 1 1/4 piastre perfect quality, photo expertize Dr. Hartung. Rare cover with the 9 a! Michel - .