Original 1st printing 4&1/4 x 5&1/2" thin paper blank-reverse concert handbill for an April Fool's Dance Concert and Costume Ball, featuring appearances by the Sparrow (proto-Steppenwolf), the Orkustra, the Outcasts, Santana ("Bluz") and the Hedds, held at California Hall in San Francisco, CA from 3/30-31/1967.

 Designer unknown/not credited, thin flat stock (YELLOW stock version) handbill is in excellent (B+) condition; there is a very thin vertical bend along the right margin, plus a few ultra-tiny handling dings here and there, but aside from that it is a fairly clean example of this semi-obscure (and EARLY!) Santana concert artifact from California Hall.