20mm(width)X470mm(length) Automotoclub Storico Italiano (ASI) is a comprehensive organization for historic cars and motorcycles.
It supports numerous historic events and certifies historic cars. ASI certification (including checking the originality of parts and the car's history) is extremely strict, and is the standard used to evaluate historic cars, known as ASI condition.
The ASI emblem can be seen on many of the cars competing in historic events, including the 1000 MIGLIA.
This is an official ASI item: a neck strap.