1959 Sc 2272-2273 To strengthen relations of school with life! Scott 2230-2231

1959. To strengthen relations of school with life!
Catalog numbers: Scott 2230-2231, Standard Collection 2272-2273, Michel 2263-2264, Yvert 2219-2220.
Perforation: comb 12 x 12¼.
Colors: violet, gray-dark blue.
Printing: Intaglio. Comb perf.

Print run: 1,500,000