„RUSCUK 81“, all arabic double circle, two clear strikes, tying horizontal pair Duloz 1865, 2 pia. blue to envelope to the war ministry in Istanbul. This special rate was only used for very short period for letters of 3 dirhems and a distance between 60 and 120 hours. A very fine and rare cover. Opinion Todd AIEP
Provenance: collection Karaivanoff (Corinphila 2002)
