First is scarce 1.5" from Detroit's Hudson's Department Store. Tiny 1/16" cello split on reverse causes no problem and all else is totally clean. This is the oldest button in the group and quite scarce. Second is "Read Across America," 2.5" with tiny 1997 copyright. Couple of very faint gray dots on bkg. Third is "In Search Of Dr. Seuss." A promotional button for "TNT" television event "Premiering November 6, 1994." This is 3". Last is very large and graphic "It All Starts With Dr. Seuss." This has 1955 copyright although actual date of use is probably 1970s. Likely intended as a book promotional button. Very faint gray smudge between the top two words but rest is clean. See next item and early Dr. Seuss character advertising ESSO gasoline #570.