He also was referenced in Superman/Batman Annual #1 in a throwaway caption near the end: "Darkseid played chess with Ambush Bug. Ambush Bug accidentally destroyed the universe with the 'Ultimate Clapper.'"
James R. Clapper | Clapper Rail | clapper | The Clapper | The Brook forded at Clapper's Farm, near Silchester | Clapper loader | Clapper | Amanda Committee's Golden Clapper |
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.
The 1st AC reports to the director of photography, works alongside the camera operator, and oversees the 2nd assistant camera (also known as the "clapper loader") and any other members of the camera department.