The “Haunebu image” to the right is obviously added later. The interesting thing here is, of course, the picture on the left.
Picture text reads: "Gigantic German Foo-Craft Hunted by P-51".
... and continues:
May 11, Two days after Germany's Total Surrender!
It appears that the image comes from a newspaper clipping, possibly a book.
Most probably a hoax, but still interesting in my opinion, since the term "Foo craft" is used, and not "flying saucer" which was first introduced in 1947 - or the even later term; “UFO”.