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| Date: | 03 26 1957 |
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| Description: | George Hanson (seated foreground center), state geologist, peers into a microscope while examining a diamond. Leaning in to look on are (left to right) Pro... |
| Date: | 06 24 1958 |
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| Description: | Three attendees at the National Forest Products Research Society conference are Richard Haussman, U.S. Forest Service; John Lutz, Forest Products Laborator... |
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