Manufactured  22-10-1976 these are dated by european standards, that makes this one Oct 22 1978. This model 5021 has no plate on the neck for the adjustment, the adjustment is inside. It has the DBBL A logo on the meachean head. The wood grain is lighter than my 76 model and still has a wonderful action. The strings I use are Martin Acoustic SP Phosphor Bronze Extra Light stock #Msp4600.. They are a lot easyer on the neck and give a better warmer tone..