See the previous post in this series here.
I made some impulse buys after getting a new scanner and picked up a huge batch of slides a while back. These pictures span from as early as the late 1940s to as late as the early 1990s. These were from Goodwill and eBay (sometimes via estate sales). There are many thousands of these slides. I will be scanning some from time to time and posting them here for posterity.
This set continues a large batch of slides that originally came from an estate sale and appear to have belonged to a locally well known photographer from the Spokane Washington area named Leo Oestreicher, or perhaps a friend or family member of his. These slides contain some landscape and portrait photos but also a lot of typical snapshot photos. Here's an article on him from 1997 which is the only info I have found on him: http://www.spokesman.com/stories/1997/jan/04/photos-of-a-lifetime-museum-acquisition-of-leo/
These slides are not labeled or dated but I believe they were taken in the late 1950s or early 1960s in Mexico. I believe that they were taken in the Teotihuacan area which is the site of a number of Mesoamerican pyramids. I think this set consists of photos of the "Pyramid of the Moon" and other locations along or near the "Avenue of the Dead". Interestingly, there are photos here from both in the air and on the ground. These are posted here processed with color restoration and Digital ICE processing because the slides were very badly faded. The colors still aren't great but are much better than the washed out pinkish/reddish hue that they were.
The entire collection that has been scanned and uploaded so far can also be found here. This also includes higher resolution versions and versions with post processing.