Manufactured 9-2-1976 these are dated by european standards, that makes this one Feb 9 1976. This model 5021 has a plain plate on the neck adjust with the DBBL A logo. the wood grain has darkened and still has a wonderful action. The strings I use are Martin Acoustic SP Phosphor Bronze Extra Light stock #Msp4600.. They are a lot easier on the neck and give a better warmer tone.