Conquest of Mars - block of stamps mint never hinged, catalog no. 2902 f. 294, Paraguay

This block of stamps was published on March 3, 1977. The block of stamps was published on the subject of "The Conquest of Mars" and contains a stamp. The stamp has a face value of 25 Guarani. The stamp shows a NASA project for a manned laboratory vehicle to explore the surface of Mars. Catalog number: 2901 sheet 294

The stamp shows the manned laboratory vehicle which is to be used to explore the surface of Mars. The extended solar cells are used to generate electricity. By using elastic steel strips, the wheels create an effect similar to that of rubber tires. One of the two Martian moons and two launching rockets are shown in the background. The surface of Mars is illustrated on the edge of the block.