[Police] Andy's and Stewart's books in Italy + How old is Sting's Fender Precision bass?

Hi everyone, I'm glad to tell Italian fans that the Italian edition of One Train Later will be published in a few days (possibly weeks), while Strange Things Happen is due out in a few months. Both books are translated by me. Speaking of Stewart's book, in a couple of places he mentions Sting's Fender Precision bass, but first he says it's a 1955 instrument, then it becomes a 1957 one. Does anybody know which year is correct, if any? Thanks! Michele www.michelepiumini.it