1851/1866, very extensive and far more than complete collection on Schaubek form text, many stamps got collected, and others Michel number in different colours. 10 //c// on piece (checked Englert BPP), 15 b on piece (expertised Flemming BPP), 16 on piece (expert. Brettl), rare 21 b canceled (checked Englert BPP) etc., high catalogue value!