This is a genuine GM AC Delco horn relay as shown for the 58-62 GM Full Size cars like Pontiac Laurentian/Parisienne, Impala & Belair & El Camino etc.
Power Window or Tailgate Window Relay
ALSO Used on may 67-75 GM full size and intermediate models like the 67-75 Firebird
Buick Applications: Horn Relay
1957-1958 Buick
Cadillac Applications: Horn Relay
1958-1966 Cadillac Calais
Chevrolet Applications: Horn Relay
1957-19627 Chevrolet full size
1962-1962 Chevrolet Chevy II
1959-1960 Chevrolet El Camino
1964-1965 Chevrolet El Camino
1968-1972 Chevrolet El Camino
Pontiac Applications: Horn Relay
1957-1966 Pontiac full size & GP
1966-1966 Pontiac GTO / LeMans/ Tempest
1962-1966 Pontiac Parisienne