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Fresnel lenses by Will S.
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©
Will S.
:
Fresnel lens
©
Will S.
:
Old lighthouse lens
©
Will S.
:
Fresnel lens
©
Will S.
:
Fresnel lens
©
Will S.
:
Fresnel lens
©
Will S.
:
Fourth-Order Fresnel Lens
©
Will S.
:
Fresnel lens inside old lighthouse, c. 1855-6
©
Will S.
:
Fresnel lens within a miniature lighthouse
