| Location | United States |
| Year | 1970 |
| Type | Collection medallion |
| Composition | Bronze |
| Weight | 24.4 g |
| Diameter | 38.80 mm |
| Thickness | 2.65 mm |
| Shape | Round |
| Technique | Milled |
| Orientation | Medal alignment ↑↑ |
| Edge | Segmented reeding with inscription |
| Period | |
| Notice | Barry Stanton |
| Reference(s) | Franklin#AIS-3 |
| Obverse description | |
| Obverse lettering | AMERICA`S FIRST SUCCESSFUL SATELLITE EXPLORER I |
| Obverse script | Latin |
| Reverse description | |
| Reverse lettering | JANUARY 31, 1958. Explorer I, launched by the U.S. Army reached a speed of over 18,000 m.p.h. in an orbit of 225 to 1585 miles. The satellite revealed the presence of the Van Allen radiation belt around Earth. FM |
| Reverse script | Latin |
| Engraver | (FM) Franklin Mint (The Franklin Mint), Wawa, Pennsylvania, United States (1964-2003) |
| Mintage | 1970 FM - Proof - 7 303 |
| Catalog ID | 3073685720 |
| Comments |
