1 1/4 PIASTER on 25 Pfennig yellow-orange and 10 PARA on 5 Pfennig green as additional franking on a 20 PARA postal stationery envelope, correctly franked(!) registered from CONSTANTINOPEL 4/3 90 to ANVERS/Belgium, arrival datestamp ANVERS 6 MARS 1890. Expertised Willmann and Dr. Hartung photo certificate: "faultless perforations and in faultless used condition." Michel estimated EUR 1.500.-