Each is a 2-1/8" square with cardboard reverse and bar pin. Some have copyright or maker information on the reverse curls and some are blank. All are essentially Mint as issued. Briefly the group contains: Jerry Garcia For President 1980, Grateful Dead three items, B-52's, Jimi Hendrix three items, The Clash, AC/DC, The Doors, Led Zeppelin, Kiss Unmasked, Pink Floyd The Wall, Hot Tuna, Springsteen 1978 Concert, three additional Springsteen, Kinks Greatest Hits, Rolling Stones three pieces, The Who 1980 Los Angeles concert, The Who/The Kids Are Alright, Beatles Sgt. Peppers Lone Hearts Club Band and four other Beatle related including Lennon 1980 memorial button.