2 1/2 Groschen large shield, brown, tied by horseshoe cancel \"Hamburg I. A. 30 NOVBR. 72\" (Spalink 17-2), lightly shade the better c-colour, photo expertize Krug BPP: \"the reverse a little shaded stamp is cognizable embossed, as usual perforated and in perfect condition. \", Michel 2.000.- - rare stamp!