File:Vintage Maico Model F-1 Portable Audiometer Hearing Tester, Vacuum Tube Unit, Circa 1960s (16440624956).jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:12, 27 December 2015 | 2,474 × 3,449 (1.87 MB) | Tm | Transferred from Flickr via Flickr2Commons |
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