File:Portrait of Johannes Janssen.jpg
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Size of this preview: 418 × 599 pixels. Other resolutions: 167 × 240 pixels | 335 × 480 pixels | 536 × 768 pixels | 714 × 1,024 pixels | 1,589 × 2,277 pixels.
Original file (1,589 × 2,277 pixels, file size: 335 KB, MIME type: image/jpeg)