6 penny "castle Dresden", variety "unperforated with printed on the gummed side", horizontal pair from margin of sheet, mint never hinged, left stamp slight creases, right stamp apart from minimal small colour line on the back in perfect condition, photo expertize Kunz BPP (2021) : "the total quality of the pairs is good to excellent. These variety stamp counts to the East Saxons rarities, especially as Existing pair. ", Michel 1.500.- plus