1 Sgr. Rose, smooth ground, having full margins and having bright colors horizontal strip of three, outstanding quality, each stamp neat cancelled with number postmark "373" - Elberfeld" (government Bez. Düsseldorf), expertized Meier BPP, Hunziker, W. Fire and photo expertize Brettl International Association for Philatelie Experts (2013) : "genuine and immaculate"