1915 - 1937, cancelled specialized collection parcel post stamps with more then 80 values from Michel no. 4 / 14, all values with clean to field certain varieties, with many good stamps like Michel no. 6A (13), 8A (2), 10A (2), 12A (5), 7 / 11B and 13 (23, more or less going through faultless condition, long-standing compiled very nice collection on stock pages, enormous catalog value (detailed listing is enclosed)