| Quality | Used |
|---|---|
| Grade | VF (Very Fine) |
| Topic | Space |
| Certification | Genuine |
Check the listing for details. Russia Soviet Space Venus Explorer Venera-1 Flight USSR Map stamp block 1961 B-1. Listed at 9.99 USD. On February 12, 1961 was the first planetary probe launched to Venus by the Soviet Union. This was pressurized to 1.2 atmospheres of dry nitrogen, with internal fans to maintain even distribution of heat.