I'm attempting to reach the owner of the two guns. Another friend just corrected me about the case material - these two cases are oak and leather and not plastic cases as I had previously reported. The (2) guns are high end Perazzi's and the owner lives in Virginia not SC. I'll attempt to get additional details concerning the year that the guns were manufactured, the model plus any additional info he can add. I'm also curious to learn if only a portion of the action in contact with the case turned black or if it was the complete action.