It looks more like the Lockheed design that had a ventral fin. The 2707 had variable-geometry wings. There's a 3 foot long model of a TWA Concorde at the EAA Museum in Oshkosh. I have a pic if anyone's interested. Chris LGA >This is not Concorde but the Boeing 2707 ! Or at least probably the US >SST as it was then known. Check the vertical fin at the rear bottom, >possibly the Lockheed design.