Both spellings are acceptable, per the dictionary. However, even though I most commonly see it spelled “judgment,” it makes much more sense to spell it “judgement,” based on how it’s supposed to be pronounced.
It definitely appears to be an old strip, and the first frame saying they’re celebrating 101 years may also imply such. They should’ve included the original date.
But the cartoonist only drew teeth on one side, and it’s the wrong side. I caught the mistake immediately. This cartoonist has evidently never used a saw.
I also picked up on that.