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Collection Home > Lenses/Cameras > Glasses > Early Bifocal Glasses
Early Bifocal Glasses
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| Date | Late 1800s | ||
| Dimensions | English | Metric | |
| Interpupilary Distance | 2.4in | 62mm | |
| Lens Diameter | 1.3in | 33mm | |
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College of Optical Sciences
The University of Arizona, 1630 East University Boulevard, Tucson, Arizona
U.S.A. 85721-0094
All contents copyright © 2008 Arizona Board of Regents.
