1 Sgr. Black on rose, variety "inverted watermark", on all sides having full margins and having bright colors extremely fine copy, neat cancelled with number postmark "1782" - Marienburg railway station (government Bez. Gdansk), expertized Brettl BPP, Meier BPP and photo expertize Flemming BPP: "without quality defects" and expertise Voigt VP (2019) : "genuine and immaculate"