This armor is a myth. It does not exist.
Initially, when Yakuza Crate was released, Tessen Fan was rumored to be one of the crate loots. Various fan websites reported that the stats were 12 Attack 28 Defense. However, no one was able to produce the image.
Mafia Wars Wiki has checked and confirmed that Tessen Fan does not exist at all.
See also: Manrikigusari Chain