This historic photo ran on the last page of DC's awesome Batman: Cover to Cover book.
There's no photo credits anywhere in the book, and no indication this has been Photoshoped to make it Historic--if it is a fake, it's a really good fake.
But it seems just too good for it to be real, doesn't it? I mean, who would've thought to take a picture of a kid reading a comic book, with the comic being the focus of the image?
Maybe this photo was taken just a few years later, by the time Batman had become famous but before it occurred to anyone a silly comic book would be worth anything, ever. If so--be gentle with that book, kid, it'll send your kids to college!