Isabella Manfredi and G.H. Mumm Lead a Bold Toast To 50 Years of the Sydney Opera House

Isabella Manfredi and G.H. Mumm Lead a Bold Toast To 50 Years of the Sydney Opera House

SYDNEY, Sept. 25, 2023 /PRNewswire/ -- Sydney Opera House champagne partner G.H. Mumm has created a special tribute to the Opera House's 50th anniversary with a toast atop the iconic sails by Australian musician Isabella Manfredi. The toast...

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