I am restoring a Seth Thomas short drop wooden works clock. I have owned the the clock for around 50 years. I bought it in damaged condition. Case parts are missing etc. The veneer on the top appears to be walnut. So I am replacing it with walnut veneer and looking closer at the sides of the clock, they appear to be mahogany. The top (what there is left of it) does not appear to be replaced. Is it possible Seth Thomas made the clock with mixed wood veneers?