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50.0 MB (50.0 MB compressed)
5189 x 3368 pixels
43.9 x 28.4 cm ⏐ 17.3 x 11.2 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Two Ivory handled ophthalmoscopes. These devices are used for visual examination of the interior tissues of the eye using light. Early ophthalmoscopes were introduced in Britain in the 1850s. These examples date from around 1870.
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