25 piastre on 5 Mark framework pure black, so named Minister print, neat cancelled CONSTANTINOPEL 20.12.13. signed Richter and photo expertize Dr. Hartung: "the stamp shows deep rich colors, perfect perforated and in faultless, used condition. " In perfect condition is the stamp very rare, there all known pieces on package cards unrecognized used and frequently damaged were. Michel 5000.-