Night of the Sentinels: Part 2 - S1-E2
Other mistake: When the Sentinel throws Wolverine over the trees, you can hear him crash to the ground as soon as his body disappears from view. The ground in the area is flat with no tall hills, so Wolverine would require another second or two after clearing the treeline to crash to the ground. (00:10:24)

Night of the Sentinels: Part 2 - S1-E2
Other mistake: After Storm and Cyclops fly away from the barrage of Sentinels, one Sentinel is shown to have his right foot "floating" on top of the left foot of another Sentinel, almost as if their feet were occupying the same space. (00:11:25)
Chosen answer: It says MPO "First Exemplary Printing House" which is a real printing company in Russia founded by Ivan Dmitrievich Sytin in 1889. There seems to be something about "named after..." as well.
Sierra1 ★