Opal. h160mm. In 1936, Alvar Aalto created his classic series of glass vases. The Alvar Aalto Collection has been the most iconic series in the Iittala range ever since. Each Aalto vase is mouth blown at the Iittala glass factory in Finland. Created in a wide range of colours and sizes, a vase from the Aalto Collection is a pleasure to own or give as a gift.