Here's some news on The Beatles' contract with Brian Epstein being put up for sale:
http://www.beatlesbible.com/2008/08/13/the-beatles-contract-with-brian-epstein-to-be-auctioned/You can click on the photos to enlarge them. I've also transcribed parts of the contract text, but the photo cuts off when talking about Paul and George's dads. If I find any more images I'll add them and improve the transcript, so do let me know if there are any better pics out there.
I think the Sexy Sadie lyrics are perhaps undervalued too - the Give Peace A Chance lyrics sold for 7x what the estimate for this is, and the wood carving is pretty unique. I'd certainly have it on my wall!