This collection consists 21 postcards and fliers from concerts held at the Grande Ballroom, Detroit, Michigan between 1967 and 1968. The majority of the postcards were designed by Gary Grimshaw or Carl Lundgren, with one by Bonnie Green, and one by Donnie Dope also included. Psycholdelic in nature, the graphics are very colorful and include images of band members.

The bands represented are Air Speed Inidicator, Apostles, Ashmollyan Quintet, Beacon Street Union, Blue Cheer, Born Blues, Buddy Guy, Buffy, Buffy Road Phenomena, Butterfield Blues Band, Byrds, Canned Heat, Carousel, Charging Rhinocerous of Soul, Children, Clear Light, Cream, Deep Purple, East Side Orphans, Electric Prunes, Fever Tree, Fox, Frost, Fruit of the Loom, Gipsy Blue, Hawk, Hooley, Influence, Iron Butterfly, Jagged Edge, James Cotton, James Cotton Blues Band, James Gang, Junior Wells, Lee Michaels, March Brothers, MC5, Muff, Nature's Children, New York Rock & Roll Ensemble, Nichel Plate Express, Nirvana, Odds and Ends, Paupers, Peace & Love (not a postcard, nor an advertisement for a concert), Poor Richard's Almanac, Procul Harum, Psychedelic Stooges, Rain, Rationals, Scot Richard Case, Soap, Soul Remains, Spirit, SRC, St. Louis Union, Steve Miller Band, Steve Miller Blues Band, Stuart Avery Assembly, The Case of R.T., The Who, Thyme, Tiers, Tiffany Shade, Troggs, Up, Vanilla Fudge, and Wilson Mower Pursuit.