I'm not familiar with this photo but it is strikingly similar to some of our aircraft in 1968 at Tyndall. Our round eyes, 572526, 572527, 572528. and 572530, were painted with a flat dirty white and the tail numbers were very small. I don't remember any other markings. All we knew at the time was they were wearing some sort of experimental paint concerning stealth. It was during the Pueblo problem so we figured they were related. It didn't last too many weeks and the aircraft were returned to normal paint and markings. We, the crew chiefs, referred to these aircraft as the "Ghost Sixes". Would love to know any additional info.