File:1912 Entomological Congress Key.jpg
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![File:1912 Entomological Congress Key.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/1912_Entomological_Congress_Key.jpg/800px-1912_Entomological_Congress_Key.jpg?20230409112350)
Size of this preview: 800 × 466 pixels. Other resolutions: 320 × 186 pixels | 640 × 373 pixels | 1,024 × 597 pixels | 1,280 × 746 pixels | 2,560 × 1,492 pixels | 3,846 × 2,241 pixels.
Original file (3,846 × 2,241 pixels, file size: 2.55 MB, MIME type: image/jpeg)