Returning briefly to the Concorde, one discovered the following website: https://www.heritageconcorde.com dedicated to that spectacular craft.  Amazingly, the technology appears quaint today, yet the plane remains aesthetically pleasing.  Originally looking for additional information on the floor system, which was mounted on rollers, to handle the longitudinal expansion of the airframe at Mach 2, due to atmospheric heating.   Had also forgotten that the initial Air France cabin was designed by Raymond Loewy.