Add to ORKGPhotograph used for a story in the Daily Oklahoman newspaper. Caption: "The state's tallest building is growing fast. Developer H.T. Griffin says construction of the Bank Building, on N Broadway between Park Ave. and Couch Drive - is about 45 days ahead of schedule. Griffen said it is hoped the building will be completed and fully occupied by March or April, 1971. Concrete is poured up to the 16th floor, Griffen said, and utilities are "roughed in" through the 18th story. Workers now are installing elevator guiderails and doors, he said. There were 210 men at work on the structure Monday, he said. The building will stand 588 feet, 6 inched tall. It will be about 120 feet taller than the city's First National Bank, now the state's tal...