A production area of the American Optical lens plant in Southbridge, Mass. Curves are being generated in lens blanks, after which fine grinding and polishing of both sides produce a finished lens.

Digital Commonwealth — Boston Public Library

A production area of the American Optical lens plant in Southbridge, Mass. Curves are being generated in lens blanks, after which fine grinding and polishing of both sides produce a finished lens.

[ca. March 1958]

RightsCC0 — Public Domain

CollectionDigital Commonwealth — Boston Public Library

[Information from item housing] Machinery ... Large + Small

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