We were told that this is possibly the mold from MasterCraft or somesuch maker for building go-karts. Bolted together around the center section. From a long-term collection and was found years ago at a car swap in Wisconsin. Absolutely no rust, and could simply be built into a go-kart or hang it up as garage art !!! The fiberglass is quite thick so it is quite solid and sturdy. Once in a great while opportunity. Zero original miles.