Unspecified / 1872
The lens
The lens
The Smithsonian catalogs The lens as periodicals in its Microscopy records.
WHY IT’S INTERESTING
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A CLOSER LOOK
The Smithsonian lists the object under Microscopy and dates it 1872.
Title from caption.
FOLLOW THE EVIDENCE
Smithsonian InstitutionThe lensOriginal explanation based on the sources above. Images carry their own reuse terms.