When i was a kid in the 70s I loved everything about Bigfoot, UFOs and other unexplained phenomenons. I lived around the corner from the local library and spent a lot of time there looking through books and checking them out. One of the UFO books I checked out multiple times had this photo in it:
I remember being scared of this photo as a child. I'd forgotten all about it until a year or so ago when I saw a color version of this picture somewhere on the interwebs.
You can read more about The Solway Firth Spaceman here.