2 Pfg to 1 Mark Germania with overprint \"Sarre\" in type I or II, set in blocks of four, impeccable mint never hinged, following types are present: 1 I, 2a I, 3 I, 4 b I, 5 an I, 6 an I, 7 an I, 8 I, 9 an I, 10 x I, 11 I, 12 b I, 13 xa II, 14 b I (in the photo expertize based wrongly 14 an I), 15 I, 16 I, 17 IA - as well various overprint error respectively upper margin copies (do not take into account), expertized Dr. Dub, J. B, Burger BPP and photo expertize brown BPP (2016) : \"the quality is perfect. \", Michel at least 3.400.- - rare in the complete set as block of four offered!