June Tabor is a great English folk singer who came to some international attention among celtic music fans through her 1991 album and tour with The Oyster Band. Her album On Air is one of the hard ones to find. It's a collection of tracks produced by the BBC in the 70s and 80s, including three covers she did with the Oyster Band: White Rabbit, and Bob Dylan's This Wheel's On Fire and All Along The Watchtower. This is some of my favorite June Tabor & Oyster Band material.
With less than an hour to go on the eBay auction, the bidding has reached GBP 16.51 (almost $30). If you like this kind of music and have the money, I recommend outbidding them :)