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Caption: Vibration helmet according to Prof. Jean-Martin Charcot, Fig. 1-3, p. 265, 1892, Scientific American. Ser. 2, Jg. 67. New York: Scientific American, 1892
Credit: Album / quintlox
Image size: 7256 × 9462 px | 196.4 MB
Print size: 61.4 × 80.1 cm | 2856.7 × 3725.2 in (300 dpi)