I was given this wonderful bass guitar back in 1973 by an Ibanez product rep. I have had it and the original flight case ever since. It still has the original strings on it (yup...35 years later)...and yes they stay in tune well enough for studio work. The guitar looks pretty much like it did the day I picked it up out of the flight case. (Actually has no scratches on it or anything...no rust...nothing!) No serial number on it...but...Y03is stamped on the finger board. The jack on the guitar is showing some real, internal wear and needs to be replaced...it is different than others since it controls the preamp ciruits, etc. Anybody have any ideas? So far...I have not been able to locate anybody that wants to tackle this for me.