1975 Sc 4410 9th Internnational Irrigation Congress Scott 4330

1975. 9th Internnational Irrigation Congress.
Catalogs: Scott 4330, Standard Collection 4410, Mi 4363, Yt 4150.
Condition: MNHOG.
Issued on: May 23, 1975.
Perforation: comb 11½.
Printing: Photogravure.
Size: 28 x 40 mm.
Colors: Multicolor.
Face value: 6 Russian kopek.
Quantity: 4,300,000.