CENTENARY OF THE SALZBURG FESTIVAL. One of the world’s leading opera, theatre and classical music festivals, the Salzburg Festival celebrates its centenary in 2020. Featuring opera, theatre and classical concerts, the Salzburg Festival offers a broader spectrum of cultural variety than any other. To celebrate this major cultural event, which is constantly in the process of reinventing itself, we have come up with a particularly innovative coin design. Delivery: In case with certificate. Mintage 30,000 coins.