Lot of 3 Napa automotive VHS video courses on emission control/engine management & ignition

Collection of three courses from "Napa Institute of Automotive Technology" on automotive systems. There are: "Strategies of Exhaust & Emission Control" - Part No 6204; "Understanding Electronic Engine Management Systems I" - Part No 6200 and "Troubleshooting Distributorless Ignition Systems" - Part No 6222.

These lessons each has a VHS video and an assortment of booklets and paper work inside a plastic book shelf case. The lesson on Exhaust & Emission Control looks like it was never opened (the paperwork is still sealed in shrink-wrap), the papers for the other two have been used. They look complete, but we haven't checked.

These have some wear and discoloration to the cardboard boxes.