Vacuum Bell Jar used to apply the fluoride coating to lens surfaces
Image Not Available

Vacuum Bell Jar used to apply the fluoride coating to lens surfaces

Image Not Available
Photograph

Bausch + Lomb Optical Co.

Maker
American, estab. 1853

Vacuum Bell Jar used to apply the fluoride coating to lens surfaces

Gelatin silver print
1997.0637.0001
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