1963 Sc 2774-2776. The XXV championship of the world in chess in Moscow. Scott 2742imp-2744imp

1963. The XXV championship of the world in chess in Moscow.
Catalog numbers: Scott 2742imp-2744imp, Standard Collection 2774-2776, Michel 2763B-2765B.
Perforation: Imperforated.
Color: Greenish-blue, black and yellow-orange. Violet-dark blue, blue and pink. Lilac, black, and pink.
Printing: Photogravure.
Print run: 500,000; 500,000; 500,000.