May I add my 2-cents on this?? I am a retired
professional photographer, presently a Paranormal Photo Analyst. Most of
my recent examinations have been in the area of Bigfoot photos and some UFO
photos. Just from looking at the image on the photo presented here, it
appears to be a light flare. In other words, a tiny speck of light reached
the film, in loading, unloading or at the time of processing.
Occasionally, a faulty camera will let a tiny bit of light creep in. I
cannot accurately state that any of these is the case here, without examining
the negative. But I have seen many such examples that were caused by light
flare, even some that were previously dubbed UFO's.