I have wanted to get a photo of this pair of shields for a couple years but it is hard to do so with all the heavy traffic, construction, etc. around it. I finally settled for sharing street view's image of it, as it is too wacky not to share. The I-76 shield was clearly doctored, possibly onsite, possibly even while it was on the posts as you can even tell driving by something is wrong with it. The 6 is clearly hand-done and they look to have tried to color over the 7. Guess they installed two 77 shields in the first place?

https://goo.gl/maps/mbfEwUzpLxGBEua18
Having neither currently a life nor anything better to do yesterday, I drove the 480-mile round trip to Akron to get this and some other sign photos. (Bonus was some walking at Cuyahoga Valley NP and my first visit to a Sheetz for a bite. My arteries are still clogging from the mozzarella sticks burger, but that was a good eat.)
As PurdueBill noted, pretty much all of I-77 in Akron is under heavy long-term construction, including reconstruction of the I-76/I-77/OH-8 interchange with new flyovers to northbound OH-8 and to southbound I-77. This assembly is oddly placed in the middle of the interchange before the point where I-77 merges in, and currently is the only duplex assembly in the westbound direction. After a couple unsuccessful attempts at a photo while moving, I finally stopped on the narrow shoulder and walked back a bit to get this photo. Don't ask how stupid that was (answer: really stupid).
The I-76 shield seems to be the same as the one in the GSV imagery, with the funky "6," but it appears that someone has since made an additional effort to paint or tape over the "7" that was originally there. You can still see it if you zoom in. Feel free to save this image for yourselves or for sharing, but please put my username with it.