This is a wooden ba gua 八卦 apotropaic mirror plaque with an image of Zhou Cang 周仓 riding a tiger. The tile is painted red with a carved ba gua 八卦 symbol at the top. The bearded man riding the tiger just below the symbol is Zhou Cang 周仓, a warrior of the Three Kingdoms period, and godchild of Guan Yu 關羽, a fierce military general who became deified after his death. Zhou Cang is holding a sword in his right hand and a wide curved object in his left. The mirror in the centre of the ba gua has been broken and replaced by a piece of tinfoil.