File:Kroll Teaching.png
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![File:Kroll Teaching.png](https://upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Kroll_Teaching.png/800px-Kroll_Teaching.png?20160628041931)
Size of this preview: 800 × 563 pixels. Other resolutions: 320 × 225 pixels | 640 × 451 pixels | 1,024 × 721 pixels | 1,280 × 901 pixels | 1,628 × 1,146 pixels.
Original file (1,628 × 1,146 pixels, file size: 2.94 MB, MIME type: image/png)