1 Mark dove from upper margin (not perforated throughout) in mixed franking with number 915, 926, 955 and number 37 I from 23.6.48 (tenfold franking) from Lüneburg to Halle / Saale used. Number 959 b in colour variety "black gray yellow, strong fluorescing". Slight adhesive patches on the letter. Study group colour determination enclosed. Michel the particular stamp 1.000.-