The clapper (two sticks hinged together) has been anachronistically claimed to have been invented by Frank W. Thring (father of actor Frank Thring), who was head of Efftee Studios in 1930s Melbourne, Australia, however as Efftee wasn't founded until 1931, not the 1920s as sometimes stated, this claim must fail.
Over the next five years, Efftee produced nine features, over 80 shorts and several stage productions, including the Australian musicals Collits' Inn (1933) and The Cedar Tree (1934).
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