1981-07-15 /BB-H580C-SB_1981/06/cbl74k.map 1981-07-15 /BB-H580C-SB_1981/07/cbl74k.map 1985-10-08 /BB-H580E-SB_1985/05/cbl74k.map 1985-10-08 /cobol12c/05/cbl74k.map