First appearance of 'Bellini'

1956 Mary McCarthy Venice Observed 19/1 Harry’s Bar has a drink called a Tiziano, made of grapefruit juice and champagne and colored pink with grenadine or bitters. ‘You ought to have a Tintoretto,’ someone remonstrated, and the proprietor regretted that he had not yet invented that drink, but he had a Bellini and a Giorgione.