Almost 40 years since Australia II won the America's Cup, the location of a piece of team memorabilia — a boxing kangaroo flag — is still unknown, but its search has unearthed a mystery on the other side of the world.
One of the first handmade green and gold boxing kangaroo flags was believed to have been flying on Australia II's support boat, named the Black Swan, during the 1983 America's Cup yacht race in Newport in the United States.