1941, 10 zloty \"castle Cracow\" in the complete sheets to 10 values, sector number \"2\", variety \"centered unperforated\" - on face like reverse perceives you a vertical recess through impression in place of the perforation - this printing error is probably through a defective perforation comb originated, top right is a handwritten \"J\" to see - the miniature sheet might from spoilage comes, photo expertize Swiss BPP: \"miniature sheet and stamps are genuine and immaculate. \", very decorative and at the same time spectacular unique!