File:1963. Entomologist Charles Sartwell. Ips oregonis studies at Pringle Falls Experimental Forest. La Pine, Oregon. (34359200640).jpg
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Categories:
- August 1963 United States photographs
- Black and white photographs of men at work
- Black and white photographs of Oregon
- Black and white photographs of standing men in the United States
- Black and white photographs of the United States in the 1960s
- Men at work in Oregon
- Men at work in the 1960s
- 1963 black and white photographs of people
- Forest entomology
- Ips oregoni
- La Pine, Oregon