1 / 3 Silver penny black on knows, arched roulette 16, clear cancelled two ring cancel "BLANKENBURG 4 AUG 1866", complete roulette at all sides!, slightly backed at the bottom and horizontal trace of crease otherwise perfect, signed Krueger and new photo expertize Lange BPP (2017) : "otherwise is the condition in fresh colour and perfect. ", Michel 2.800.-