Considering a grip of the collection is already on Google, this is only special in its physicality, and in this digital age that means very little. You could get one nice touring exhibit out of this that could run once a decade. Otherwise it's only value is archival in which case it should be donated to a library to be properly cared and managed, or they should start their own. Actually considering the background their own library/museum makes the most sense, but not when you're already trying to sell your assets.

*SMH*

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Big PEMFin H & z's
"I ain't no entertainer, and ain't trying to be one. I am 1 thing, a musician." � Miles

"When the music stops he falls back in the abyss."