We can see that this is one of Continental's
B727-200s, but further identification isn't easy. Given that the
reg is N7 something, fleet data suggests that it's a 727-200 Advanced,
likely photographed in 1981. But a straignt 727-224 (meaning non-advanced) would appear almost identical and could have have taken as early as 1968. What is certain is that the print came from the Boeing Film Library at the Renton, WA plant.
-- Boeing photo