During perforation, 3 types of sheets were created. In all 3 types, the 10th column has a longer stamp. In one type, in addition, the stamps of the 1st row are higher, and because of this, the 10th stamp in the sheet is longer and higher, which is why it is unique in the sheet itself. In the case of the third type, there are no more stamps from the first row that are higher than the stamps from 10th row are higher, so the 100th stamp in the sheet is longer and higher and again unique in the entire sheet.
sheet type I.
A – all stamps from columns 1-9 have the standard length and height: 31,0 x 21,5 mm
B – all stamps of the 10th column have a longer length and the standard height: 33,0 x 21.5 mm
sheet type II.
C – stamps of the 1st row from positions 1-9 have the standard length and greater height: 31,0 x 23,0 mm
D – the 10th stamp in the 1st row has a greater length and height: 33,0 x 23,0 mm
A – the stamps of rows 2-10 in columns 1-9 have the standard length and height: 31,0 x 21,5 mm
B – the last stamp in rows 2-10 has a longer length and the same height: 33,0 x 21.5 mm
sheet type III.
A – stamps of rows 1-9 in columns 1-9 have standard length and height: 31,0 x 21,5 mm
B – the last stamp in rows 1-9 has a longer length and standard height: 33,0 x 21.5 mm
C – stamps of the 10th row in columns 1-9 have standard length and greater height: 31,0 x 23,0 mm
D – the 10th stamp in 10th row has greater length and height: 33,0 x 23,0 mm
