You can tell the difference by the price on the topp of the box. 30 cents on the 1978. 39 cents on the 1980. Thanks for looking and please check out my other listings. The item "1980 Topps Football Unopened Cello Box BBCE Certified" is in sale since Sunday, February 2, 2020.This item is in the category "Sports Mem, Cards & Fan Shop\Sports Trading Cards\Football Cards". The seller is "generalet" and is located in Hillsboro, Oregon. This item can be shipped to United States, all countries in Europe, Canada, Australia, Japan, China, South Korea, Indonesia, Taiwan, South africa, Thailand, Hong Kong, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Grenada, Egypt, Cambodia, Cayman islands, Sri lanka, Macao, Oman, Peru, Viet nam, Uruguay.