A Boeing bomber 4-ship consisting of the B-52, B-47, B-29, and B-17. This B-52C (54-2676) crashed in 1957, the B-47E (52-0165) of the 9th Bomb Wing was scrapped. Now the two oldtimers up top, B-29 44-62022 and B-17 44-83684, survive to this day in museums.
Little do the men working on these factory-fresh Fortresses realize that over half a century will pass and these planes will still be flying. The four tail numbers I can make out (60-0004, 0038, 0041, and 0043) are in service today. Location is the flightline at Wichita, Kansas.