Abstract
AFTER silvering an ordinary clock glass (about 5 in. diameter) on the convex side, I noticed on removing the wax, with which the concave side had been protected, that a perfectly distinct image of a small child's head had been rendered visible. The image is a photographic “positive”.
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ROBINSON, E. A Permanent Image on Clear Glass. Nature 111, 569–570 (1923). https://doi.org/10.1038/111569d0
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DOI: https://doi.org/10.1038/111569d0
