Zeiss Umbral 65 and 85 lenses in envelopes
 Catalogue Number: 4134 Zeiss Umbral 65 and 85 lenses in envelopes Category: Spectacles and lenses Sub-Category: Spectacle lenses Corporation: Zeiss Year Of Publication/Manufacture: c1990 Time Period: 1940 to 1999 Place Of Publication/Manufacture: Germany Publisher/Manufacturer: Zeiss Description Of Item: Two tinted glass lenses in paper envelopes. Smaller envelope, 75mm square, printed 'Umbral 65/ Zeiss/ West Germany/ Symbol fur Zeiss Qualitat/ sph 0.00, 70, d 1.8' contains a 70mm diameter plano glass lens with 65% brown tint. Larger envelope, 81mm square, is printed 'Umbral 85/ Zeiss/ Markenqualitat von Carl Zeiss/ 65/ sphere 0.00/ Dicke 1.8' and a barcode. It contains a plano glass lens with 85% brown tint which actually measures 70mm diameter. Historical Significance: In 1924 Zeiss introduced the Umbral sun protection lens, the first uniformly tinted sunglass with or without spectacle correction. The Umbral 65 envelope marked 'West Germany' predates the reunification of Germany in 1990. How Acquired: Donated by Karingal Optical Date Acquired: January 2022 Condition: Lenses excellent, envelopes good Location: Documents Room Green Daytona Cabinet Drawer 4 |