"More Skeletons from the Closet," Bonhams & Butterfields second auction of Grateful Dead ephemera, will be held Oct. 5 in San Francisco. Previews begin Oct. 2.
Items in the 170 lots come from the estate of Vince Welnick, a close family friend of Ron "Pig Pen" McKernan, Stanley Mouse, the collection of Dead manager Rock Scully and Dead Heads.
Among the items: original Jerry Garcia artwork, sound equipment, original handwritten lyrics, Welnick's grand piano, the bass John Kahn used in the Jerry Garcia Band, and Scully's metal attaché case adorned with dozens of Grateful Dead stickers. Plus hand-painted wooden Russian nesting dolls.
Pigpen's items include a handwritten lyrics; an M. Hohner brand engraved harmonica; three Grateful Dead 45s; and a rare 1966 poster, "Can You Pass the Acid Test," that hung in Pig Pen's room. His copy is one of the only known examples to survive and its value is estimated at between $25,000 and $30,000. 
I've got a birthday coming up and I would gladly accept the acoustic guitar nicknamed "the Kitchen Beater" that was used at 710 Ashbury St. Another interesting lot: Two tie-dye speaker covers made for onstage use throughout the early 1970s.
Also up for grabs are gold records, instruments, a '56 Chevy and concert posters.