S28010

oval overprint issue 1920 - perfect mint never hinged quality with full original gum and with both 15 Pfennig stamps, Michel# 16-17, 19 and 25-26 expertized by Gruber, BPP, Michel# 28 expertized by Wasels, BPP, Michel# 18 and 27 expertized by Hochstädter, BPP, the other stamps not expertized