JF Ptak Science Books Quick Post
Josef Rodenstock (1846-1932) started his company, "G. Rodenstock" in 1879, manufacturing and selling mathematical, physical, and optical instruments--it survives to this day. This advertisement for the optics branch of the company appeared in the July 1, 1918 issue of Illustrirte Zeitung (Leipzig)--it is rather small in the original, but very effective; I couldn't pass it by without sharing.
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