HISTORY OF CEREAL PLATES
 1953  WHEATIES 48 States, Alaska & Hawaii, Wash DC, Canada, Foreign 
 1954  WHEATIES 48 States + DC, Canada (10 provinces only)
 1959  Baker's Chocolate 50 States
 1960  Post Cereal Paper - cut from back of box
 1963  General Mills
Cereal
Gritty "Reflective" stickers
 1968  Post Cereal Tin Plates - first year for "modern" cereal plates
 1970  Post Cereal Tin Plates
 1975  Post Cereal Tin Plates (some dated 1974)
 1978  Post Cereal Tin Plates (dated 1974 thru 1978)
 1979  Post Cereal Tin Plates (all dated '79)
 1980  Post Cereal Tin Plates - no embossing at all this year !!
(All dated '80 except Colorado)
 1981  Post Cereal Tin Plates (all dated '81)
 1982  Post Cereal Tin Plates (all dated '82)
 1983  Post Cereal Tin Plates
 1984  Post Cereal Tin Plates (all dated '84)
 1986  Post Cereal Tin Plates (all dated '86)
 1987  Post Cereal Tin Plates (undated plates matching the 1984 numbers)
 1988  Post Cereal Tin Plates
 1989  Post Cereal Tin Plates (all dated '89)
 1990  Post Cereal Tin Plates
Thanks to Dirk Starck (ALPCA 6438) for some of the above information.