Lambretta series 1 & 2 toolbox trunnion set.
Made to the correct Innocenti design with metal half moons and the smaller trunnion angled.
The Complete Spanner's Manual: Lambretta Scooters by Martin 'Sticky' Round (Author) Third Edition
The Unofficial Lambretta Manual Update by Mark Haines
LAMBRETTA - ILLUSTRATED GUIDE TO THE IDENTIFICATION by Vittorio Tessera
Lambretta Performance Tuning and Conversions - 8099990