A part-assembled Tiger tank, built from one of the ModelWorks kits. Same builder as the Britannia we currently have in, according to a friend of the family this has, at one point, been fully assembled and working - it's believed to have been dismantled to fit some improved driveline parts.
It's a large, heavy lump with some pretty heavy duty engineering involved - all up weight when finished is claimed to be 70Kg.