From big chief studios arguably the most famous front door in london other than no 10 221b baker street is home to the worlds only consulting detective sherlock holmes behind the black door of this fairly unassuming flat on a regular street sherlock and dr john watson can be found working on solving their latest case big chief studios proudly announces the 221b entrance 1 6 scale diorama environment officially licensed by hartwood films ltd countless hours of research went into th