The South Bend; if it has lettering on the butt use this chart to determine what line it is for.
How to Convert the Old Line Weights to Modern AFTMA Line Weights;
Many of the older powell rods were very versatile in the line weights often being able to line from 5 - 7, price wise I have no clue. I'm not familiar with green ones so I can't date it for you.
Value wise the South Bends are not highly sought after and sell from 35 - 85 dollars based on weight and condition, tube - sock, etc.