1945 MOSTAR, Shifted overprints

Normally, shifted overprints are considered as a random error and specialty. However, Mostar issue is not such a case! It is much more common to have stamp with a slightly shifted overprint than the centered stamp.

1945 Mostar local provisional issue, 30 / 3.50 Kn.

Centered overprints are much rarer than shifted ones.

Overprint displacement increases in proportion to the distance from the center of the sheet and have its maximum on all four corners (positions 1, 10, 91 and 100). 

1945 Mostar local provisional issue, 30 / 3.50 Kn, complete sheet.

Only nine complete sheets remained (one per Mi. 1, 2, 4, 5, 12, 13, 15, 16 and 17).