I could sure use some (~ 2 dozen) of those old metallic riders (for file cards) for a project. An old office supply store might have them or know where to get them. In my area, the old stores have closed - replaced by large office supply chain stores (that carry only very modern stuff - and not much variety either, another story). Does anybody out there know how to get some of these old card riders? (They are thin and flat, about 3/16 by 3/8 inches in size, and have two "slots" that enable them to straddle the edge of a file card).