One old tool collector told me that clamps like these were often called "Quilt Clamps", perhaps because they may have been used to hold quilts while they were being sewn. I'm not sure, but regardless these are perfectly functional. This is a matched set of 4, and you're getting the entire set of four with FREE shipping. These are made of cast metal, and they show beautiful patina from a little superficial rust. I love how the screws are made to look like old skeleton keys, or vaguely like bat wings, and the design makes it really easy to turn the screws. All 4 clamps are a matched set and these measure about 4 3/4" long when compact by about 2 3/8" wide and 3/4" thick and the screws open and close smoothly and could use a spritz of lubrication. When fully open, the gap between the clamp
