This is literaly "Like New in Box". It comes with the instructions, which are in Japanese but the illustrations show you where the reducer goes in the optical train. Reduces ratio by 0.75X (FS78 goes from f/8 to f/6). $339 new - this one is $250 shipped CONUS, $255 shipped outside.
Personal Check, Money Order, or Paypal (add $7.50) are all fine. I will ship USPS Priority - with Paypal you can have it before Christmas.