A Google search of Fender Japan catalogues reveals that there is a PB70 in the 1992 catalogue. They may be earlier but I don't know.
Honestly, ignore the age thing, it's irrelevant for Fender Japan. There's no pre-CBS/late 70's early 80's quality issues that beset Fender US.
Similarly, if you want to go down the route of changing the logo, there are the lawsuit basses from Greco, Fernandes and Tokai (and others) that are of similar quality (many came out of the same factory before it went over to Squier production - this is the Squier that became Fender Japan, not the later models from other countries).