First crop circle?

I keep seeing this image as the first known image of a crop circle.

http://www.informantnews.com/pics2/mdevil.jpg

Is this a genuine old document, or a modern fake?

(lets not bother discussing whether circles are real, okay. )

it is a genuine document from 1678. cite. It’s actually here at the uni library were I so inclined.

Wow, thanks. I knew I could count on the dopers.