Yeah you can see where some substance caused it to bubble up, an unstable poly finish will craze or crack when it shrinks with age, usually in a big spiderweb pattern, someone definitely put a substance on there that caused that to break apart and it looks like whatever cleaning implement they used took off the clear coat and added a sort of rough texture to the whole thing, but those chips are definitely from localized abrasionsSomeone probably tried cleaning it with alcohol or an alcohol based cleaner or naphtha.
Interesting... was it a California made bass from the early 2000's?I had one do that because of rubbing alcohol