[camlov2]

I have never seen the piece in person, however there are a few things that stand out to me-
It seems like there is chipping between the Bowerman and Young cards (upper half) right along where the two cards would come together. The crease to the right of the Young card also seems to follow perfectly where the two cards would meet. I would guess seperate cards due to those two items and the difference in colors.

unrelated question- Why does it appear if there are lighter circles underneath all of the printers marks?