Title: FD 137 Blues Concert Postcard Big Mama Thornton
Venue: Avalon Ballroom
Date: September 13-15, 1968
Groups Performing: John Mayall, Big Mama Thornton, Black Pearl
Artist: Wes Wilson and Kurt Strausse
Printing Info: Original printing
Condition: Excellent - Near Mint
Size: Card 4 3/8" X 7 1/4"