Pair of untrimmed original 1st/only printing 4&1/8 x 7&3/8" concert postcards (8&3/8 x 7&3/8" total size) for Big Brother & the Holding Company (featuring Janis Joplin) with Thyme on 10/15/1968 and John Mayall with the Psychedelic Stooges (featuring Iggy Pop) on 10/11-13/1968, both at the Grande Ballroom in Detroit, MI.

Art by Carl Lundgren, images are #108 and 109 (card #'s 57 and 58) in the Russ Gibb Presents/Grande series. Medium thin flat stock cards are in superb near mint (A- to A-/B+) condition; an ultra light amount of handling wear and a slight curl, otherwise fine. Really sharp uncut pair of Grande cards.