Just picked up this Ironman Master serial #N6L0408. From the info I gathered off sheldon brown it was made 26th week of 1986, I'm guessing it's an 87'
Model because the split from "Ironman" to "Ironman Master" and "Ironman expert" is 1987. 1986 model would just say "Ironman"? The original RD was replaced with a 105 and the shifters are 600 7speed, I don't know if the bike should be 6 or 7 speed and the hubs are 105 with Wobler XT rims. Every thing else is original as far as I can tell. Will be posting a teardown and rebuild later when I have time.
Please don't tell the wife, I'm supposed to be rebuilding the french doors