|Variant of||Jefferson Airplane / Grateful Dead / Martha and the Vandellas San Francisco 1966 (OP-1)|
|Notes||There are three "OP" versions of this poster, mostly due to a distinguishable trio of paper stocks used. It is likely that it was also printed multiple times over the course of the weekend before the shows (as was not unusual for BG prints of the era) with what paper stocks were available at the time. |
All three OP printings do Not have the "#26" added just after the "Wes Wilson '66" credit.
Colors across the print runs of all originals can vary due to plate wear, primarily the shades of pink and the gradation of the black.
The OP-1 printing is the most common of the three, printed on very thin stock (thinner than most other BG prints) measuring about 0.0050" in thickness.