| Location | Federal Republic of Germany |
| Year | 1976 |
| Type | Collection medallion |
| Composition | Gold (.999) plated silver (.925) |
| Weight | 20.5 g |
| Diameter | 38.3 mm |
| Thickness | 2.5 mm |
| Shape | Round |
| Technique | Milled |
| Orientation | Medal alignment ↑↑ |
| Edge | Smooth with lettering |
| Period | |
| Notice | |
| Reference(s) |
| Obverse description | Two ancient worker pushing a helical gear in circles to pull up stones out of a hole in the ground. Another person below picking up a bucket. |
| Obverse lettering | DAS
SCHRAUBENRAD (Translation: The helical gear) |
| Obverse script | |
| Reverse description | Lettering, owl-gear crest above. |
| Reverse lettering | Das
Schraubenrad, eine Verbindung von Schraube ohne Ende und Zahnrad
zum Ziehen einer Last, wurde um 250 v.Chr. wohl von Archimedes
erfunden. (Translation: The screw wheel, a combination of a screw without end and a gear for pulling a load, probably was invented around 250 BC. by Archimedes.) |
| Reverse script | |
| Engraver | |
| Mintage | 1976 - Proof - |
| Catalog ID | 6523084320 |
| Comments |
