Feature: In the word "ПОЧТОВАЯ" there is a narrow letter "А". Stamps with attached label.
Total circulation of Mi RU 79BxI in all varieties: Mass.
Additional information:
1). Yellowish paper, much poorer quality, spots at back projection. Paper structure (back projection) has a vertically oriented rhombic net - "honeycomb". Stamps exist on paper with "Wm K1" along the sheet margin.
2). Ruble denomination stamps went on sale in sheets of 50 pcs. (sheet 7x8, including 6 control signs "crossed V" instead of a picture of stamps). Horizontal distance between stamps: 3 mm.
