Isabella Collection, by Juliska - We are an Authorized Dealer. Old-world style and fluid shapes define the graceful lines and elegant details of the Isabella collection. The goblets are particularly reminiscent of 17th century silhouettes. Juliska's rich European heritage spans six centuries and many of its original silhouettes can be found in glass museums around the world. Each piece is mouth-blown, and individually signed, by artisans in the hills outside of Prague. Juliska glass is lead-free, and dishwasher-safe on the gentle cycle. Wash larger pieces by hand. on all orders in four to seven days!