Here’s a fun site with images of vintage music show posters. It’s run by Mitch Diamond, who calls himself The Kardboard Kid.
Mitch has been collecting these posters and hand bills since 1970, and has amassed a substantial number of these classics of advertising art. He is also something of a celebrity in the world of poster collectors, having established the record for the highest price ever paid for a show poster when he purchased an original 1966 Beatles Shea Stadium poster, now on display at The Rock and Roll Hall Of Fame.
In addition to an assortment of rock and roll, blues and jazz posters, Mitch also has a good many early country and bluegrass posters displayed on his site. I found original posters of Bill Monroe, Flatt & Scruggs, Reno and Smiley, The Osborne Brothers and The Stanley Brothers.
Mitch buys and sells in addition to collecting, and invites people with an interest in his collection – or who may have articles to sell – to contact him by email.
See all the posters at The Kardboard Kid site.