Michel no. 1-11 being a complete cancelled set on blanko-envelope (various types, amongst other things no. 9 IIc, 10 IIb and 11 IIb) signed "H. Conradt". In addition to it no. 2-6 and 10 on piece (all type I) as well no. 3 IIb multiple expertized (storm, Richter, Opitz), Michel 1. 250.