Error In Russian Stamp?

I have a question if someone may be able assist me. On the top left side of this Russian 10k used perforated stamp,the number 10 printing and color is missing on the left upper corner of the stamp. The other 3 corners of the stamp has the number 10 and coloring around it. Is this common or scarce due to this manner of printing? Does this have an increase of value due to error? Any information about this stamp would be appreciated. I am aware that the imperforated 10k is most valuable one.

The resolution of the pic isn't too good, so can't really tell for sure, but could it be this stamp is simply damaged in the left corner? From what I can distinguish the cancellation also seems to be missing continuity.

.

with microscopic view there is a fine line around the whole stamp before the perforations and that is intact and not broken, and the scrolls are not completely created and the lithograph dots by the stone are vertically in position up to the curve of the beginning of the scroll like a partial "c" turn without complete designed and backwards partial "c" for the left side of the scroll of the opposite side also same manner for this upper left corner. The thick first inner line is intact and the lithograph dots horizontally reach up to curve of the partial scrolls on both sides. it is missing the development of the 10 and the color, but a few dots are noted seen in the space. The are black ink of the cancellation lettering of the "P" is on the top of this area.

I hope the above message helps describe it. Since I am not a computer wiz,I attempted with photoshop to get the photograph, but I agree it is not in focus well. I do not know to zoom to that specific part of the stamp to make it more clear view, but I tried to give the best description what I viewed under microscope. It is interesting looking since the design is not completed for that left corner.