Ok now this is what I can tell you. <br />Built 12th month in 1973<br />8Q69IDH301737Q<br />8=Holden<br />Q69=4 Door GTS<br />I=?<br />D= Year 01/09/73 - 30/08/74<br />H3=Acacia Ridge, Bisbane<br />301737=Production number <br />Q=HQ<br /><br />HQ80469 XV4<br />HQ=HQ<br />80469=Kingswood Sedan V8<br />XV4=Monaro GTS 4 Door<br /><br />1816=Tangerine<br />30X=Black Interior<br /><br />Thats all I can help with. <br />Maybe some other members may wishto explain the other.<br />L31=308<br />M40=Tri-matic