- Trifocal lenses in a plastic frame.
- Currently not on view
- Object Name
- overall: 2 in x 5 in x 5 1/4 in; 5.08 cm x 12.7 cm x 13.335 cm
- ID Number
- accession number
- catalog number
- Credit Line
- Rhoda S. Ratner
- See more items in
- Medicine and Science: Medicine
- Data Source
- National Museum of American History
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