I haven't read through the whole thread yet, so maybe someone else has brought this up...
I remember as a kid the common practice of hyphenating a word when you came to the end of a line, and continuing the word on the following line, rather than leaving a big space at the end of the line, and starting the new word in full on the next line. I noticed the documents listed as other examples for comparison suggests Killian routinely hyphenated words. Is that practice anywhere to be found in the disputed documents, and if so, is it demonstrably inconsistent with Killian's normal practice?
You are correct.
One would have frozen margins that froze the carriage at the end of the line.
If, however, you wanted to sneak one or two characters passed the frozen margins, you could press the "margin release" button and do it.
The style was thick even paragraphs and uniform.
Good catch.
I believe the documents in question are justified text (force fit on the line). It has been noted in the thread that the technology to do that probably wasn't readily available at that time.