I can remember back in the late 1960s,as part of the run up to christmas,mum and dad used to take me to Hamleys toy store in Regent street,in London to purchase some Tri Ang/Hornby goodies for santa to deliver on christmas day(happy days).I remember,i think,that there was a large layout that went around the top of the staircase(which was enclosed in a perspex frame).That year,for christmas,i received a Tri/Ang Hornby Winston churchill and three southern coaches.I think,correct me if im wrong,but wasnt Hamleys part of the Tri/Ang empire? I think there boast was "the largest toy shop in the world". Also,Clements department store in Watford used to have a very large layout in the 1960s and well into the 1970s,it must have been at least 20 feet long and at least 10 foot wide,it was multi level,with tunnels and the grand victorian suspension bridge as well,although i never actually saw anything running on it.I guess that this layout was built by the store and not tri/ang,as it was then.