I'm reworking a fly rod ... an old fly rod ... for a friend. On its side it says "HMG 102 6i". Any idea what it may be?

It's a really pretty brown finish that looks like tiger eye. It's been rewrapped (brown right over the original black threads), and shows signs of a repair to the rod, somewhere back in time, at the end of the top section. It's a very nice rod. Just thought it would be fun to give him some back ground on the rod. Thanks!!