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A really unusual Dento Form Columbia Dental and X-ray company mold showing an example of early modern ligature braces circa late 1920's New York. This piece has a super creepy feel to it, I have not seen another example. Made from a cast of a persons mouth, you can see the horrible early example of ligature braces. The first modern braces used metal sheaths that went completely around each tooth with a wire fused to them. Sounds comfortable right? The two pieces are marked with unique numbers and the company name. Seemingly a type of metal and possibly a wax/resin base coated with a heavy metallic paint of some sort, quite thick could be lead. A very dense solid piece in excellent condition. A perfect addition to any cabinet of curiosities or dental collector/historian. 2 and 1/2 inches tall, 3 inches wide, 2 1/2 inches deep.