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" I received this vintage bowl, marked Steuben, as a wedding present 17 years ago. How old is it?  J.M., West Hartford, Connecticut   What it is: STEUBEN BOWL  Steuben Glass was founded in 1903 in Corning, New York, and bought by Corning Glassworks 15 years later. In 1932, Corning chemists developed an optic lead glass of intense clarity and brilliance, known as 10M, which was used for all subsequent Steuben wares. Your bowl--model 7806, created by staff designer Walter Heintze \u2014 dates to 1938 and bridges the transition from classic Art Deco style to softer, biomorphic shapes. Only 200 were made, in two sizes. Yours, the larger 12-inch bowl, sold for $15. Now, in good condition, it&amp;#039;s worth 20 times that.  What it&amp;#039;s worth: $300 "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.countryliving.com/shopping/antiques/a2904/glass-bowl-appraisal-0809/>