SustainaBill : I pulled it out of my collection. It rests right next to the other release on MGM Sunflower - Historic Dead.
Ah yes, Historic Dead: 4 songs, recorded at the Avalon Ballroom in San Francisco, California in late 1966, and released in June 1971.
Side one
1."Good Morning Little Schoolgirl" (Sonny Boy Williamson) – 11:01
2."Lindy" (Jab Jones and Will Shade) – 2:49
Side two
3."Stealin'" (Gus Cannon and Will Shade) – 3:00
4."The Same Thing" (Willie Dixon) – 12:01
Historic Dead was produced as a vinyl LP on the Sunflower Records label and distributed by MGM Records. Sunflower had purchased the rights to a number of concert recordings from the Avalon, including some by the Grateful Dead. Historic Dead is therefore not a bootleg album. However, the band did not participate in its production. The album reached number 154 on the Billboard 200. It has long been out of print, and has never been issued on Compact Disc.
Historic Dead was preceded by another Sunflower Records album recorded at the Avalon in 1966, Vintage Dead.
As noted by WLewis, considering that this music was first played in 1966, the sound quality is strong. At 12:01 "The Same Thing" is early Pigpen with lots of improvised jamming at it's best. In those days, Pigpen was the lead singer and though the musicians were young and still learning how to play their instruments. Their energy and ability to strech tunes out just was...!