2 Sgr. Blue, plate flaw III "B at the bottom in silver penny broken out", horizontal pair with normal stamp, having bright colors and having full margins extremely fine copy, clear tied by box cancel of 2 lines "GRÜNBERG 16 9", expertized Pfenniger, HK (Horst Krause, Gelsenkirchen), photo expertize Flemming BPP (2012) : "perfectly commercially used condition with not frequent plate flaw. " and expertise Voigt VP (2019) : "the condition is perfect. The plate flaw is rare, like here in the existing horizontal pair with normal stamp very rare! "