Ed writes, "This photo was taken of my father and I in 1981 at my fathers home. My father passed away just last week in his house about 30 - 40 feet from where this photo was taken. The green colored light marks in this photo were not in the picture when I looked at it not more then a month ago. A copy of this was buried with my father and there wasn't any green marks in that one. I only noticed the green marks after I got home from the funeral. Can you tell me just what this is as I am at a loss, a family friend told me that my father is telling me he is happy and everything is alright."