Ooooooo . . . that's a rare one indeed. That particular one was made by Fujoharukawatsan Heavy Industries LTD (most known for making wheel tractors and 50 cal. machine guns) for GT for only one year (1983 I believe), when GT was having a major falling out with their then-supplier in Taiwan over production line quality control. One of the robotic welders was spazzing out and the company was refusing to recalibrate it because it was nearing the end of its life-expectancy and was zeroed out on their depreciation tables - - hence they didn't want to pour money into a unit so near to being retired. Mfr's contention was magnafluxing showed weld penetration was adequate, so there was no need to recalibrate, even though the left lower chainstay welds looked like crap.
GT threatened to file suit but instead yanked production out from under the supplier mid-run and awarded a new contract to Fujoharukawatsan. Big stink ensued but GT prevailed and got that model year line to the dealer's floors.
Other than the sticker, there is no way you'll know by the serial number that it's a Fujoharukawatsan unless you take the bottom bracket out of the shell, and get in there with a dentist's mirror and a flashlight - - you'll see a tiny hand-tooled stamping of an artillery cannon between where the chainstays meet the bottom bracket shell. Hang onto that one; it's a rare piece of cycling history there and bound to only go up in value.
Originally Posted by Mark Twain
"Don't argue with stupid people; they will drag you down to their level and then beat you with experience."