line weights on south bend bamboo rods

Question
Sir:
 The South Ben bamboo rods have letters for line weights.  I'm looking for a conversion table that would tell me what the letters mean in terms of modern line weights.
Thank you,
 Alan Shearer

Answer
Alan,
This chart is from the Internet:
AFTMA #   DT   WF            LEVEL   MM - OD   IN - OD
1   --   --       I   0.56   .022
2   --   --       H   0.63   .025
3   IFI   IFG       G   0.76   .030
4   HFH   HFG       F   0.89   .035
5   HEH   HEG       E   1.02   .040
6   HDH   HDG       D   1.14   .045
7   HCH   HCF       C   1.27   .050
8   GBG   GBF       B   1.40   .055
9   GAG   GAF       A   1.52   .060
10   G2AG   G2AF       2A   1.65   .066
11   G3AG   G3AF       3A   1.78   .070
12   G4AG   G4AF       4A   1.91   .073

I have confirmed it to be accurate with lots of experience.

Luck,
Mac

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