I stand corrected, my "new" shutter is not a #6, but appears to be a #8, with two pistons. It may take a bit of work to get it functioning properly, but it appears to be complete. I contacted Reno Farinelli at Packard, and they could do a refit for $65, but shipping to and from them from Canada would be prohibitively expensive. If I can do the work myself, I would be much happier. I have read the threads on cleaning etc., but most of the posts are lacking in some of the details I would need to make a proper assessment of the shutter. I would greatly appreciate any guidance anyone can offer, particularly in regard to the thin metal arm that links the shutter blades to the left and right (intstantaneous and time) pistons.