I just stumbled across some seriously cool photos a traveler took in China in 1983 (h/t to Josh at farwestchina.com's Twitter account for the link). There are great photos from across the country in this album. It almost goes without saying in China where things change so fast, but these thirty year-old photos look like they were taken eons ago.
Here are some of the best ones from the Xi'an section:
I strongly suggest going over to Mr. Demery's entire collection of China photos. Really neat stuff.