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'Isokrystar' and 'Punktal' lenses sample set OPHTHALMIC LENSES Lens samples Busch Europe: Germany Early-mid 20th c. Glass Case: 19 x 218 x 150 mm |
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Set of six round sample lenses, four convex and two lenticular. Contained in black leatherette-covered wooden case with hinged lid and yellow metal clasp. Red velvet and silk lining. |
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