Offered for sale is a nice Nikon PK-13 Auto Extension Ring with a 52mm Nikon No. 1 close-up filter.  High quality items made in Japan.  Comes with original PK-13 instructions and a case for the filter.  Hardly used and in excellent condition.  Please see the photos of actual items.  Fits Nikon F mount cameras.  Selling as is as shown.  Buyer to pay an additional $14.95 for careful packaging and shipping.  Please see my other listings for more great items!