[quote name='discreet' timestamp='1430052048' post='2757443']
I missed this... yes, that is possible I suppose. I'll do a bit more research. This mark has been bugging me for years. I wonder if it's worth sending a picture of it to Fender? They must have some idea of how it got there. Has anyone ever seen anything like it on any other bass?
[/quote]
Could it be the start of a knot forming in the wood at the time the tree was felled?