I have not yet cut a pre 1950 record only because I have not had one I understand they are made from a completely different material and are brittle I would love to try one and keep looking for them I do have a new contact who gets donations of lots of older style records hopefully he will get some if so I will cut and let you know or if you try before me let me know please , I think it will just be a case of finding the right blade at the right speed to not smash it apart or melt it back in as you cut never know someone may read this thread and has already tried it I cannot be the only strange one to keep cutting vinyl lol