Could this be the "Möwe"? It was developed by the naval laboratories of the Oberkommando der Kriegsmarine and Rheinmetall, at D¨sseldorf.
Specs taken from "International Missile and Spacecraft Guide", by Ordway and Wakeford:
Lenght: 1,09m
Weight/loaded: 59,8kg
/payload: 7,48kg
propellant: 15,19kg
Range: <8km
Altitude: 4,8km
Velocity: 1931km/h
Firing time: 3,3 seconds
Solid fuel (Diglycol) fired
Specs taken from "International Missile and Spacecraft Guide", by Ordway and Wakeford:
Lenght: 1,09m
Weight/loaded: 59,8kg
/payload: 7,48kg
propellant: 15,19kg
Range: <8km
Altitude: 4,8km
Velocity: 1931km/h
Firing time: 3,3 seconds
Solid fuel (Diglycol) fired