Bakelite H.T. ignition coil (original Filso type) as fitted as standard by Innocenti to the following Lambretta models;
- Lambretta D150
- LD150 (1954-'56)
- LD125 (1956)
- LD125 & LD150 (1957)
- Lambretta S1
- Lambretta S2 (early production models)
This coil is mounted to the felt type support block 842