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The Brass Knuckles Heavyweight Championship was a title held by Spinks in Frontier Martial-Arts Wrestling (FMW). It was a hardcore wrestling championship, meaning that there were no disqualifications and no count-outs. The championship was defended in brutal matches, often involving weapons such as barbed wire and fire. Spinks won the championship in 1995 and held it for several months before losing it to The Great Sasuke.