THE BEARS- I know them, have several images and plush toys too!
Here's the story about the Bear.....
Owsley Stanley (born Augustus Owsley Stanley III, January 19, 1935) also known as The Bear, was an underground LSD cook, the first to produce large quantities of pure LSD.
Stanley designed some of the first high-fidelity sound systems for rock music, culminating in the massive "Wall of Sound" electrical amplification system used by the Grateful Dead in their live shows ( and it was a WALL of SOUND!)
Stanley met the members of the Grateful Dead in 1966 and began working with them as their first soundman and helping to finance them.
There's a GRATFUL DEAD L.P. called Bears choice that Owsley chose the songs!
Cheers and
Have a GRATEFUL DAY!!!