Legnano Registry

Frame serial number registry

“It is said” (?) the first letter starts a “set”.
The second letter’s purpose is unknown.
The numbers thereafter are in sequence within these lettered sets. By the 1970s there is a new system with only numbers.

Serial number location on frame:
– 1940/50s: on the side of the seat tube top collar area.
– 1960s: on the back of the seat tube post collar area.

Updated on 12.17.2022

Legnano Registry

May we add you and your Legnano serial number to this list? Send to webmaster