Auction Saboteur have a brick tagged by Gavin Turk for sale, I will let them explain themselves:
"Gavins Auction Saboteur exclusive today is a first. Simply his signature on a brick ... or should we say tag? We love the way this piece raises question about street or urban art. What is it? What isn't it? Why do we concern ourselves with leaving a mark? When does a tag become a brand? When does the signature become more important than the art itself?"
Edition of 10 @ £500 each