The autograph looks wrong too. My friend was interested in it. I told him it didn't look legit.
First, the jersey isn't in the frame. If the company issuing the COA sells frames, it's odd that it doesn't come framed.
Second, there's errors in the signature. The squiggle that Beliveau has under this auto usually goes left to right, then back to the left, and UNDER the first line, and then a loop in the middle. This one goes above. Also, the 2 in 1972 looks off. Beliveau always has a loop in bottom of the 2.