Just an FYI because I, too, nearly started bidding on it: Spoo's buckle is of a 280zx, not a 240/260/280z. That's the second generation, which you can easily tell by the rear window shape. The earlier gen has an upward curve on the glass, while the later cars had triangular glass among some other differences. The buckle is a '79, which is the year the 280zx came out in the US. Not sure that changes anyone's mind. But I thought I'd throw the info out there. It might not make any difference to a Datsun fan.