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![Seiji Onishi, an engineer posing with research equipment (ddr-njpa-4-1526)](https://ddr.densho.org/media/cache/4f/99/4f998366195a106ba3cbdd728498ec94.jpg)
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Seiji Onishi, an engineer posing with research equipment (ddr-njpa-4-1526)
Caption on reverse [translation]: "Seiji Onishi (4864) Department of the Interior engineer, Doctor of Medicine."