my guess (and I really don't know all of these LOL!) Upper left, a binder foot with the binder part missing, Mid left, kind of looks like some of the holders that come in the older metal boxes to hold side clamp feet. Lower left - - no clue, but I've got items like that too. And on the right - an older ruffler, I'd have to go look at the ones I have like that to figure out if it's all there or not.