Im really thinkin this must be the "stepchild" of the SG line. Introduced in 1980, it appears to have had a short, vague and misguided life. Its begginings were simple as it was simply a "the SG" (standard) made from natural finish mahogany rather than walnut and getting its name from the Gibson logo fire branded onto the headstock. From there, things get pretty confusing since sources state they were no longer made after 1981 and I have seen them ser# as late as 1983; painted various colors and without the branded logo. My only guess is that after they officially discontinued, they made "shop" guitars out of the leftover pieces parts for a few years. Maybe someone out there can shed more light? Its unique and valued sound should keep this model from the shadows more than what I would expect.