![File:Geoffrey Butler 2016.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Geoffrey_Butler_2016.jpg/800px-Geoffrey_Butler_2016.jpg)
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current | 08:03, 4 August 2016 | ![]() | 3,975 × 2,431 (2.09 MB) | Materialscientist | crop |
08:00, 4 August 2016 | ![]() | 5,472 × 3,648 (6.35 MB) | Materialscientist | Transferred from Flickr via Flickr2Commons |
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