2-Rail brass O Scale Central Locomotive Works CLW SD-40 diesel locomotive sec 1 parts and instructional sheets and more in original box. CLW SD-40 diesel locomotive sec 2 parts, instructional sheets and more in original box. Kits are unassembled. Boxes show light wear, storage grime. Please view the photos of the items in this lot carefully as they are being sold as they are shown in our photos with NO returns or refunds.