My Marilyn Photo

My Fiance came across this lady selling Marilyn Monroe memorabilia out of her van.Apparently this lady's mother had passed away and she found this picture in her mothers house. I had never seen this picture before so i automatically fell in love with it. When i went to put it in a better frame i came across the writing on the back. Also there is a white paint all around her image, i was told that back then that was done so the picture didn't bleed while printing it.... not sure how true that is.. Can anyone tell me more about it? im very curious as to where it came from and if this picture was ever used in anything. Thanks for the help.