1900, 5 Pfg on 10 Pfg China with Diagonal respectively steep overprint Michel no. 1, unused and cancelled specialists item with 17 values, as well numerous scarce types - among others Michel no. 1 IIb with violet line in of the rare overprint type 3 a with photo certificate Jäschke L. BPP unused, many further expertized BPP as well superb and choice copies, high quality and interesting lot from lasting for years collector activity, on stock page