File:1942. F. Paul Keen. USDA Bureau of Entomology and Plant Quarantine, Division of Forest Insect Investigations. Portland Lab, Federal Courthouse, Portland, Oregon. (33454840426).jpg
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![File:1942. F. Paul Keen. USDA Bureau of Entomology and Plant Quarantine, Division of Forest Insect Investigations. Portland Lab, Federal Courthouse, Portland, Oregon. (33454840426).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e1/1942._F._Paul_Keen._USDA_Bureau_of_Entomology_and_Plant_Quarantine%2C_Division_of_Forest_Insect_Investigations._Portland_Lab%2C_Federal_Courthouse%2C_Portland%2C_Oregon._%2833454840426%29.jpg/432px-thumbnail.jpg?20180503234047)
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