Being that English was their language at that time I don't think that is an issue.
What I haven't seen addressed though is the modern looking fonts on the form its self.
I've been away for a while, has this been addressed on way or the other?
The one font a DU’er was harping about that was said to be invented in 1995 was debunked as some of the numbers did not match.
Those fonts look very much like my Olympia, manual typewriter of the time, vintage 1956.