Thanks Swanny for finding the '75'! And thanks Capriman, I'll check the compliance plate for 10a (I don't know why I didn't think of that! D'oH!) . My Chassis number also has an 'A' at the end - any idea what that signifies? So far I can see it was built in Sydney (Australia) in May 71, as a Deluxe or L Bench seat. No wooden dash facia so I'm guessing the 'Deluxe'.