View of a 1964 Flxible bus and a 1962 Flxible bus, for the Aztec Bus Lines. Stamped on back: "Andrew R. Harrison, 10917 Choisser St., Whittier, Calif. Photo by: Date: Feb 23, 1964." Handwritten on back: "Flxible. 41 pass. Nice comparison. 1962 model (728). 1964 model (732)."