The only A-D bike which I know of with a name including "Inte" was indeed the Inter 10. By 1982 the Inter 10 was all-531 (meaning not just the main tubes, but forks and stays too), listed in the '82 catalogue just as a frameset and not as a full built-up bike. The '82 catalogue specifies Gipiemme drops, so I'm **guessing** that yours is an earlier model, because it's listed as a complete bike in the 1976 catalogue with Shimano drops. Also, it looks like your frame doesn't have brake cable braze-ons on the top tube, which puts it earlier than 1982. I've don't think anyone here has ever tried to decipher the A-D serial numbering system.

I've got an A-D Starleicht from 1982, and it's my #1 ... a great bike.

That's quite a find. Build it up and treasure it.