What Reno brought up is excellent. The wear and tear on the 'materials' was something I forgot about. The screws and locknuts that vibrate out of where they belong, the ballasts that had 90% of the label 'rubbed off'. The devices that had 'scars' from many miles. The bulbs that were 'dead' from broken filaments.
These 'shop worn' items usually turned up when it was time to clean out the trucks.
