found 'em! posters my dad brought back from san francisco in summer 1966 (&, as an art student, thought to keep them flat), part 1. some BGP classics.
posters my dad brought back from san francisco, summer '66, part 2, family dog edition (plus a stray BGP)
posters my dad brought back from san francisco, part 3, non BGP/family dog division (cc @corry342.bsky.social)
@bourgwick These are fantastic! What a cool legacy.
@bourgwick love the Sir Douglas Quintet poster, the copy I have has a slight offset in the green print which gives a really nice feel.
@doc_dead i think the offset is meant to simulate 3D? or maybe just an accident?
@bourgwick I always assumed it was a serendipitous accident. Cool effect whatever.
Also have a copy of the PH Phactor poster, but I think mine has a brown/orange second layer. Will dig it out.

@bourgwick

Never seen that Bo Diddley Quicksilver poster. Boldness!

@bourgwick Thanks for sharing to take me down the rabbit hole. Seeing The Turtle’s turtles with 66 under it made me wonder about a connection between it and Terrerapin being out in 1977. Learned something new!

https://extrachill.com/grateful-dead-terrapin-turtles-meaning/

The History and Meaning of the Grateful Dead Terrapin Turtles – Extra Chill

One of the lesser-known but still beloved Grateful Dead logos are the terrapin turtles. First pictured in the cover art for the 1977 album Terrapin Station,...

Extra Chill
@Brian yup, the heinrich kley turtles! i'd never noticed until today that they actually credit kley on the turtles poster.