1 / 2 Sgr. Red orange, block of four, on all sides having full margins and having bright colors extremely fine copy, unused with original gumming, expertized Drahn and Ressel as well photo expertize Brettl BPP: "faultless condition. An attractive block piece. " and expertise Voigt VP (2019) : "the condition is perfect. A scarce unit. " multiples the originals are rare, in particular in present quality!