Below is a link to an image of the concert bill for the ABB show at the Miami-Hollowood Speedway on Dec. 27th, 1972. It was an all-day festival with the ABB as the night cap. This would have been one of the earliest shows with the new line-up including Lamar Williams and Chuck Leavell. I attended this show with friends and have great memories of the afternoon/evening!
If some one here has better skills than I do... please copy the image and insert into the thread. Better yet post it in the ABB Database under the Date, Pictures and Sound Clips, Memorabilia section.