Ive owned this for many years and it truly is a beautiful set. I believe the grade is due to the wear on the chewy baggie, otherwise I think its a solid 80, possibly an 85. The box has some creasing and wear but no tears or stains. The tray is nice and white with the usual tiny dents on the back, not cracks or breaks. The baggies are all in top condition except for chewy which has a small hole.
Otherwise the set is in Near mint condition. Please let me know if you have any questions or need more pictures. My appologies for any glare in the pics from the acrylic. The item "Vintage Kenner Star Wars Early Bird Mailer Set DT Double Telescoping Luke AFA75" is in sale since Wednesday, December 13, 2017. This item is in the category "Toys & Hobbies\Action Figures\TV, Movie & Video Games".
The seller is "lennysweet" and is located in Red Lion, Pennsylvania. This item can be shipped worldwide.