Examination for supervisory jobs in trades and crafts, foreman (grades WBSC-7 to 9) $2.66 to $3.64 per hour, lead foreman (grades WBSC-5 to 7) $2.45 to $3.41 an hour, for duty in Federal penal and correctional institutions, Bureau of Prisons, Department of Justice, and institutions of Corrections, District of Columbia Government, announcement 9-14-2 (1960).