POLAND / SAN MARINO, 1965
The first pictorial stamps depicting prehistoric animals were issued in 1965, the Polish issue just
predating the one from San Marino. Both issues had only one purpose: to be collected.|
The illustrations on the Polish stamps are after the famous Czech painter Z. Burian; the first time his works appear on stamps, but definetely not the last.
Note the misprint (colour shift) in the Polish stamp.