© C_elegans
 Medal - The Helical Gear
1976 year| Gold (.999) plated silver (.925) | 20.5 g | 38.3 mm | 
|   Location   |  Federal Republic of Germany | 
|---|---|
|   Period   |  Federal Republic (1949-date) | 
|   Type   |  › Tokens | 
|   Year   |  1976 | 
|   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 ↑↑ | 
|   Updated   |  2024-11-14 | 
|   Numista   |  N#391933 | 
|---|---|
|   Rarity index   |  97% | 
Reverse
Lettering, owl-gear crest above.
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.
Edge
Smooth with lettering.
Lettering: ERSTAUSGABE NR 'XXXX' 24K GOLD AUF SILBER (925/1000) 76 P
 Translation: 
 First issue no 'XXXX'
 24k gold on silver (925/1000) 76 P