Vickers A1E1 Independent

Large multi-turret tank designed and built between The World Wars. Built on the principle that it would operate without the co-operation of infantry or air power, hence 'Independent'. The idea of a 'land ironclad' was no longer popular, however, and this vehicle was only ever used in demonstrations. It did however influence German and Soviet tank design. http://www.flickr.com/photos/7700258@N05/