http://www.michaelritter.de/bilder/motorrad/gs_50_andere/
See unrelated entry here, for NOS Replica Perego Sachs motor.
197? – NFS – Hercules Sachs GS 50 – Perego Replica (7 Images)
Chronicling the many uses of the humble 50cc engine. From commuter moped through sports motorcyle. Taking Trikes and buggy's in along the way.
50ccbikes.wordpress.com 
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