Date: | 04 20 1961 |
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Description: | Monona police chief Clifford Pfister displaying a police crash helmet with blinking red lights that he designed with the assistance of the Ray-O-Vac Compan... |
Date: | 04 19 1961 |
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Description: | Monona Police Chief Clifford Pfister demonstrating a police crash helmet with blinking red lights that he designed with assistance from the the Ray-O-Vac C... |
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