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Unidentified artist
[The camera obscura (d) in the 19th century. The image from a mirror (a) reflected through a lens (b) onto a white table (c).]
1970s
Illustration
Private collection of Valerius Geng
LL/111497
Illustration from a 1970s German photographic magazine.
Copyright information requested.
(Alan Griffiths, 17 June 2021) I'm indebted to Valerius Geng for bringing this to my attention.
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LuminousLint 
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