[rcooled]

I'm sure ckissick knows all about this, but I'll mention it for other Dead fans in & around the SF Bay Area. The University of California's Santa Cruz campus library is home the Grateful Dead Archive. This is an amazing collection of artifacts connected with the band and well worth a look, even if you're just a casual fan.

The Grateful Dead Archive is made up of nearly a thousand boxes of documents and recordings, as well as hundreds of objects, equipment, and framed art, all of which were created or collected by the members of this iconic band over the course of decades of making their music, touring, operating their business, and connecting with their fans.
The majority of the Grateful Dead Archive documents the years 1970–1995, though some materials date to before and after that period. Specific strengths of the band’s archive include: Business records documenting tours and concerts, posters, artwork, and merchandise documenting the Grateful Dead's broader commercial efforts. Materials like thousands of decorated envelopes, fan art, and correspondence that reveal the extraordinary bond the band forged with their fans.

https://guides.library.ucsc.edu/gratefuldeadarchive