I just looked through one of my catalogs and I'm pretty certain it's a 1948-1972 Ford stepside rear bumper or a 1948-1956 Ford F-1 front bumper. Eiter way, it's junk since you can buy new ones for less money than it would cost to fix that one.

1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)