File:David P. Brownstein.jpg
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![File:David P. Brownstein.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/5/52/David_P._Brownstein.jpg/800px-David_P._Brownstein.jpg?20190130210911)
Size of this preview: 800 × 533 pixels. Other resolutions: 320 × 213 pixels | 640 × 427 pixels | 1,024 × 683 pixels | 1,280 × 853 pixels | 2,560 × 1,706 pixels | 5,071 × 3,380 pixels.
Original file (5,071 × 3,380 pixels, file size: 1.92 MB, MIME type: image/jpeg)