I am restoring my first straight razor. So far the experience has gone really well. I sanded off all the rust and polished the blade to a near-mirror finish. I honed my first straight razor with relative ease. I don't know if I've held such a sharp blade of any kind! Now my problem is the scales. The razor is a Jackson from Fremont, OH. The scales appear to be plastic. One scale is black and the other is a dark-green. I'm assuming the dark-green are discolored due to age, but I thought I'd ask the experts here what you think. They appear to be made of plastic.

thanks!