The last variation is very interesting. At first, I thought it might be a bootleg, wherein the perpetrator got hold of blank Checker labels from the very end of Chess' run, when they were bought out by All Platinum, and he just had his pressing plant use an available font. But that font seems to be one that All Platinum used on their own records in the early /70s. So, it might be a legitimate re-issue by All Platinum from the early '70s pressed in one of the East Coast plants they used,
On the other hand, I'm questioning why this, particular, poor-selling Gospel record would have been chosen for re-issue by a company who paid a lot of money to purchase a catalogue with a lot of classic R&B/Blues/Jazz/Soul titles they DIDN'T re-release. It could be that a bootlegger somehow got hold of blank Checker labels from the All-Platinum period, and not having access to original Checker fonts, chose the available font closest to one of All Platinum's used fonts, to feign legitimacy of use of the available blank labels.
For me, this is a 50/50 possibility of legitimate vs. boot, as I have looked through millions of 45s between 1965 and 1990 , and never seen that font used on a Checker record.