1960 Sc 2356. The I congress of the International federation on automatic control in Moscow. Scott 2349

1960. The I congress of the International federation on automatic control in Moscow.
Catalog numbers: Scott 2349, Standard Collection 2356, Michel 2358, Yvert 2300.
Perforation: comb 12 x 12½.

Colors: Dark-brown and light-yellow.
Printing: Intaglio. Comb perf.

Print run: 3,000,000.