souvenir sheet issue "Aid for the city kindergarten" with experimental perforation L 11 1 / 4 the both stamps as also the sheet margin concerns, unused without gum - as issued, delivery cancel PSKOW k 3 12 41 in the left upper sheet margin, over of the left stamp is a stain spot and by of the lower stamp lilac patches of colour, the other condition is perfect, size 121 x 162 mm, , great rarity of the area! unsigned and photo expertize Walter Zirath BPP (2025) "there are only very few souvenir sheets known. ", Michel 6.000.-