2 Mark German Reich dark cobalt blue with black typography overprint "Gdansk", variety "double overprint", horizontal pair from corner margin lower left with overprint HAN "3374.20", as a pair with HAN with the existing variety "double overprint" probably only a few pieces known, left stamp unused, the right stamp mint never hinged, unsigned, photo expertize Soecknick BPP (2016) : "genuine and immaculate. ", by taking into consideration the normal stamp to the HAN with an additional charge from approximate 400 % added be the price for a house order number including variety on Euro 2.250.- plus mint never hinged single stamp = 3.350.- ++