Hello dear all! A friend of mine is now selling his Ric 4001, Jetglo. The condition is good for 35 years, though it seems to be refinished. Vintage tunners are stock. Also it is equipped with SD pickups and Hipshot bridge. Serial number is UB430, feb. 1981. But there is one detail. Truss rod adjustment is on the side on the body, the headstock lookes like that - see photo. I've found no Rics with such grooves on a headstock, to my mind there should be truss rod adjustment on it. On this particular bass thruss rods have been replaced for self-made ones as far as I know. Please help me understand if it is original Ric 1981 m.y. of just a well-made and good sounding copy. Some pictures are enclosed.