| Lieu | United States |
|---|---|
| Année | |
| Type | Souvenir medallion |
| Composition | Copper plated (Non Magnetic alloy) |
| Poids | |
| Diamètre | 73 mm |
| Épaisseur | |
| Forme | Round |
| Technique | Milled |
| Orientation | Medal alignment ↑↑ |
| Tranche | |
| Période | |
| Notice | |
| Référence(s) |
| Description de l’avers | Observatory building |
|---|---|
| Écriture de l’avers | Latin |
| Légende de l’avers | PALOMAR MOUNTAIN OBSERVATORY Elevation 5580 feet Revolving Dome Diameter 137 feet Weight 1000 tons |
| Description du revers | |
| Écriture du revers | Latin |
| Légende du revers | Telescope 264 inch tube 62 feet long-Weight 150 tons Paraboloid 200 inch Pyrex-mirror Weight 14 3/4 tons accuracy of surface 1/200,000 inch Whole Mounting 500 tons Looks in space 1 Billion light years One light year = 5,000,000,000,000 miles |
| Tirage | |
| ID Numisquare | 6466600880 |
| Commentaires |