The great-grandson of a photographer named Charles F. Oehler donated 89 lantern photographic slides that were taken by Oehler when he visited Yosemite Park in 1903.
The slides were contained in this wooden box:
Here's one of the slides from the collection:
Here's the article about the donation showing more photos from the collection:
https://www.sfgate.com/yosemite/article/Yosemite-National-Park-lantern-slides-1903-Oehler
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