Supposedly the N models first came off the production line in March 1944, and the N-1, fastest of all the production Warhawks, did not have the revised clear rear canopy that came out with the P-40N-5-CU. So those old E models were indeed getting rather long in the tooth by the time that photo...
I especially like this P-40 shot from AK. Now just look at that collection of aircraft and what it implies. Both short tails and N canopies are present. A testament to the durability of those aircraft, especially given the AK Theater.
B-52 in the USAF Museum. It was damaged by a SAM on 9 April 1972, made an emergency landing at Da Nang and after being repaired flew four more missions over NVN in December 1972.
I recall Johnny Carson describing how on one flight after they landed the stewardess took him to the lavatory on the airplane and showed him that an elderly lady had taken a safety pin and pinned closed the curtains over the window.
But on the other hand.....
One of my favorite "Rosie the Riveter" pictures. I asked an old friend of mine, a professional photographer in California, if he thought this was a shot of a real factory worker or a stage shot of a professional model. He replied that it was a terrific shot but that he thinks it is more likely...