Banksy’s handling service, Pest Control Office, has created one of the most efficient certification systems in the art world. They have also been active in the second-hand market, acting as intermediaries between sellers and buyers of Banksy’s certified prints and unique studio work. (This has nothing to do with street art pieces.)
Now it seems like they are taking it to a new level with the announced launch of http://www.Bbay.shop. It is an interesting development for the booming secondary market in Banksy artwork and will hopefully set a new standard for transparency in the art market.
Banksy unofficial 