Up for auction are a complete set of Tiffen Antique Suede Filters, #1, #2, #3, in the Series 9. Glass and rings are in excellent condition.
The great thing about Series 9 filters is that you use them with different size retaining and stepdown rings. They are compatible with every new camera or lens which makes them future proof. All you have to do is buy the proper stepdown ring for about 5 bucks or so--much cheaper than buying all new threaded filters. Series 9 filters are about 90mm in diameter.
Individual Sets sell for $517.50 on B&H
Antique Suede -http://www.ebay.com/itm/292295025842?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
Chocolate - http://www.ebay.com/itm/292295044515?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
Tobacco - http://www.ebay.com/itm/Tiffen-Tobacco-Series-9-1-2-3-Solid-Color-Filters/292295049290