This is a 500mm mirror lens for the Contax/Yashica SLR cameras.  This lens is used and has fungus visible on the front element.  Included are the lens hood, lens caps front and rear, and two rear fitting filters- a normal filter and an ND4 filter.  Both have signs of fungus on the glass.

Sold as seen, no refunds.  Please bear this in mind before you bid.