Two books in a single lot are coming up for auction on May 14th, if you are interested.
Dominic Winter Auctioneers
Viewing: Tuesday 13th May, 9am-7pm & morning of sale from 9am
Sale #51414, commencing at 10 AM May 14th 2014
Lot 465: Tolkien, J. R. R. The Lord of the Rings, pub. George Allen & Unwin, 1969, two folding maps, orig. cloth gilt, blocked design to upper board, spine lightly faded, 8vo, in orig. slightly rubbed slipcase, together with The Hobbit or There and Back Again, de luxe ed., pub. George Allen & Unwin Ltd. for the Folio Society, 1976, col. frontis. and plts., publisher’s qtr. sheep gilt, gilt blocked design to upper board and spine, 8vo, contained in orig. slipcase The first volume listed is the first India paper edition. 
[Update] - Did not sell