I am selling these as a pair, since I have more film backs for my SQ than I can use. There is some wear from normal use, and one of them has a nasty looking dent on the corner of the insert (as seen in the picture) but they work just fine with no light leaks or frame spacing issues. Dark slides are included of course. I'd like $100 plus shipping (Priority Mail-insured) for both. U.S. only please. I tend not to be around during the day to answer email, but I will get back to you in the evening. Thanks for looking-- Jim