Scootermania
Two brands have dominated the history of Scooters: Lambretta and Vespa.
The larger and more decorative Lambretta is often considered more desirable for vintage scooter enthusiasts, however, I have always preferred the minimalist simplicity of the snail-like Vespa from the early 60s, which seems to better capture the spirit of modernism rather than Mod.
This documentary traces the history of Viaggio and Innocenti scooters from post war Italy to mid 60s Britain. It has some particularly great period footage from the 50s.