"Georg Schwanhardt the Elder (1601-1667) was a German glass-engraver and rock crystal engraver, and the founder of the Nuremberg school of engravers. He was a student ...
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of Caspar Lehmann and upon Lehmann's death inherited his exclusive patent for engraving glass. His engravings often portray miniature landscapes adorned with formal scrollwork." - (en.wikipedia.org 10.08.2021)
