Here is am nice set of genuine Nikon 72mm filters.  

The polarizer is linear, so this set is  ideal for your

 manual focus Nikon system (F, F2 series, F3 series, FE/FM series, FA). 

Remember, you will need a circular polarizer for your modern AF camera with beam-splitter.

The Polar and Y48 (medium yellow) filters are mint in the box.  The L1Bc has some very faint scuffs seen in strong, side-light; this will not affect imaging on film but is mentioned for completeness.

All threads are good.

Filters come with original cases, boxes and a couple of spec sheets.

No direct international shipping; must use eBay's worldwide shipping service.