I found this and I think you'll like it. It's an add from MotoVespa (spanish filial of Piaggio), published in 1982. Bikes shown are Vespino (the black one, very popular) and Vale (the white , hard to see one):
Translation of add's text:
<big>Grow-up with Vale and Vespino</big>
Everyday taller. Giving appropiate answers to your needings. Now you can walk the way your future depends. Build with power your fate. Only so its posssible to become a LEADER. In technology, in sales in aesthetichs. Grow with VALE and VESPINO and bring another rythm to your life. The one your YOUNGNESS, your HAPPINESS, your INDEPENDENCY. From your FOURTEEN YEARS OLD enjoy with VALE and VESPINO. Grow with VALE and VESPINO.
(inside yellow marker: From 14 years old)
4000 dealers and technichal assistance points