Thread: Using old materials

I am planing on using the scales off of one of these razors to use as donors for the tang cover on a William Rodgers piece that I am currently restoring.

I am new to the restoration of straight razors though, so I was looking for advice on what would be the best way to cut them to a little over the finish size. To keep from cracking or chipping them. After they are cut I plan to file and sand them to final size and shape, and finally polish and pin it all up. They are made of celluloid and I'm not sure how brittle they might be. That's why I picked up two that are a close match to the original, which is what I am after for this razor. Thanks for looking and any help is greatly appreciated.