Pre-owned 2 marks you can see in the pictures. Please see the pictures for details. All Venetian Glass products sold are hand-made by skilled master glass-blowers in a traditional factory on Murano Island in Venice, Italy. Every piece is crafted one-at-a-time using traditional glass-making techniques, and every product is special and unique What makes Murano Glass so famous? As mentioned above, what makes Murano glass so special is its history and methods of creation. It is world-famous for its unparalleled quality, exquisite range of colours, and not to forget the unsurpassed craftsmanship.