1853-1865, used partly expertised collection with No. 4 on piece, very low placed Brettl BPP signature, Nos. 6-9, rare No. 10 B with old Krüger signature, No. 13 expertised Brettl BPP, perfect No. 14 B expertised Brettl BPP, No. 15, Nos. 17 and 19-20 each expertised Brettl BPP etc., Michel value around 10000,-