A Brief History of the Marque
These are a later version of the Nibbio 125cc scooters built in Italy by San Cristoforo.
The machines had 8 inch wheels, a 3 speed gearbox, weight 85 kg and had a top speed of 75 km/h.
The Simonetta was to be built under licence by Ravat of France, but it does not appear to have progressed further than prototype stage.
Sources: MC Storico Conti, Henshaw, et al.