I think the 5 digit s/n indicates that as well - or should it be four digits? As I say, I've never had a maple Springy. If it's poly finish, C neck & E pickups, that makes it an ST60.
1981) also apply to the maple board versions? Does that thing about the first digit of the serial number indicating the year (i.e.
It's easier to date the RW board versions, as far as I know.