I believe the scales are ivory . I've read that cracks at the pins are not uncommon on old ivory scales . As long as you handle the razor with reasonable care , I don't think the cracks will get any worse . I don't know how well super glue would work , but I don't think it would do any harm . Just be careful if you use it at the pivot pin area , so you don't accidently glue the blade to the scales .