I gave it to my brother, it's been lent to various people, one of whom added the stickers; he died and it was recovered from his effects and no-one can bring themselves to peel them off.
At the time I just accepted the bass as it was. Playing it now, it has a ridiculously low action, teensy frets and wide but shallow neck, P rather than J width. The bridge is very hefty and decidedly superior to a Fender one. Only played it through a little Line 6 practice amp last weekend.
It does seem to be the original pickguard as some (not all) the marks seem to match up, it's also a very odd shape as the steel plate is asymmetrical so a jazz plate wouldn't fit. I bought it new in about 85?