Used Series 9 adapters and retaining rings. Adapter fits your lens. Retaining ring (or hood) holds filter in place. (See diagram for correct application.)  SS LR adapters clip to outside of lens. (Allow 3mm extra over filter thread size since these fit the outside of the barrel.) ALSO- hoods, step down 9-8 (67mm) rings and series 8 retaining rings. All ready for action. Same day shipping if ordered before 10am eastern time (US). Check out my MANY Wratten filters in my store. Also new and used filter frames and filter holders are available.

MANY-MANY Series 9 filters at: https://www.ebay.com/itm/115634374846