3 Pfg to 20 Pfg crown / eagle with overprint "marshal islands" so-called Berlin initial printing issue, four values, in perfect condition mint never hinged, expertized Albert Friedemann and detailed photo expertize Steuer BPP (2019) : "except for one paint attachment at the Michel-no. 1 Ia U are all values in perfect condition mint never hinged. . . . The very scarce and qualitatively perfect perfectly set. . . ", very rare!