1985 Peugeot Triathlon. Major components are all original and a mix of French parts.
A friend bought it new, rode it for 1 year, and then it sat in his garage for 30 years.
It took a lot of cleaning to make it look nice. Yellow saddle and tires are not original (obviously).
1989 Centurion "Dave Scott" Ironman. Major components are all original and mostly Suntour.
Bought it off of eBay. It was in near-mint condition and probably only ridden a year or two.
Re-did all the bearings and replaced the disposables (except chain and cassette were still unworn).
36-spoke wheels. Original tires were 700x18.