My father is looking to sell his vintage Kennedy toolboxes and it has fallen to me to ascertain the value. The upper is marked 520-8158. The lower has the tag but the numbers have worn off. He's pretty sure he bought them some time in the mid to late 70s. Facebook Marketplace pricing is all over so I thought I would turn to the experts on here. There are a few tools that will go along with the boxes and I have no idea what they're worth if they're worth anything at all. What say you guys?