From the manual I'm looking at, 5 cams would have been included with accessories, and the patterns of those cams are shown in the manual. You can compare those patterns to the built in patterns, on the underside of the lid, but presumably they are different or why include the cams. If you want the whole set, and it's not cost prohibitive, then get it, but beware of becoming a completionist... And welcome to the world of vintage sewing machines, we look forward to hearing about all the additional machines you're going to acquire!!