Moto:
Your talking about the ZW, to me they're not worth anything, I have 4 of them. How much are they worth to you?
Freek:
From what I can see, the set you have is an uncatalogued set manufactured by Lionel for Sears in 1973. Is the set number 1393? If it were in mint/unopened condition, it could be worth about 250, in excellent condition, 175. Very good, 100. From what I can see of your set, it would be rated as "good", which would put it around 50 bucks. At best it would be very good. The sets from the 70s and 80s are not highly desired as they were the low point of Lionel manufacturering.