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Stigmat low vision auxiliary lens unit / telescopic unit
OPHTHALMIC LENSES
low vision lens
Stigmat Ltd
Europe: United Kingdom
1950s
plastic; glass
2013.586
OPHTHALMIC LENSES
low vision lens
Stigmat Ltd
Europe: United Kingdom
1950s
plastic; glass
Low vision auxiliary lens unit with three different powered aspherical objectives, two of them attached to round-shaped frame mounts and the third to a square mount (for demonstration?). High index glass. Four push-on near vision auxiliary lenses.
2013.586
The Norman Bier Collection, transfer from City University, 2013