2 Sgr. Ultramarine blue, eagle in the oval, horizontal pair, impeccable roulette, superb in every respect (choice copy), clear tied by blue two ring cancel \"LIEBENAU\" on piece, expertized Dr. Rieger, photo expertize Brettl International Association for Philatelie Experts (2014) : \"genuine and immaculate\" and expertise Voigt VP (2019) : \"genuine and immaculate\"