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'Eye-preserver' spectacles with sets of D-shaped lenses
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
Tortoiseshell 'eye-preserver' spectacles with two sets of blue D-shaped lenses and silver turnpin side-arms. Side-arms are hallmarked and marked with 'H A' or 'H T'.
Details
- Category:
- Optics
- Object Number:
- 1921-323/152
- Materials:
- tortoiseshell, silver and complete
- Measurements:
-
overall: 120 mm
lenses: 30 mm x 29 mm
- type:
- sun-glasses
- credit:
- Dunscombe collection of spectacles