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A student blowing glass during a glassblowing lesson at the Berlin Glas workshop in Wedding, Berlin, Germany Stock Photo - Alamy
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Berlin Glas e.V. and Kids Blow Glas celebrate the International Year of Light 2015! – International Year of Light Blog
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A student blowing glass during a glassblowing lesson at the Berlin Glas workshop in Wedding, Berlin, Germany Stock Photo - Alamy
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