There is "im Gasskammer"
and not "im Gaskammer," your source has it wrong too.
According to the same logic, the documents speaking about installing stoves in medical room, at water installations, brick layer works and etc. are forged too since these work reports are written with spelling errors too and without the "criminal traces," quite the contrary. Please explain who and for what purpose allegedly forged these documents. Please explain why this alleged forger speaks in singular and not in plural about the gas chamber, why he called other rooms by their normal name or simply as "chambers" instead speaking in plural about gas chambers in accordance with the post war story.
As Carlo Mattogno pointed out, these errors were probably written by a civilian Polish worker who didn´t handle German perfectly, thus the spelling errors are no surprise.
ClaudiaRothenbach wrote:2. "in Gaskammer" would be ok, but the word order of the sentence is wrong.
This would be German: "Fußboden in Gaskammer: Aufschüttung auffüllen, stampfen und Fußboden betonieren ."
It looks like there was this worksheet without any "gaskammer", but teh forger used the space behind "betonieren". The forger did not speak German very well, that is why he put "im gaskammer" into the text.
presence of the passage "im Gasskammer" is written on the first line and a writer continued from the previous page, then the other entries follow from the same line since there was a still some space on the first line. So if you do not want to tell us that somebody who prepared the originally genuine document kindly provided some space for future forgery and for this purpose he began to write from the end of the line, then your hypothesis is again unfounded. Another document contains again the passage with an error "Gassdichtenfenster versetzen" and again this passage is written in the middle of the document and since this must be a forgery too according to the presence of a spelling error, then somebody again provided space for the future forgery.
The word order is not good in more cases, so again, the documents are completely forged or not forged at all, you cannot claim that one passage was inserted and others are genuine since more of them contain errors or not proper word order.
ClaudiaRothenbach wrote:3. Once I saw a better version of the doc and it was to be seen quite well that the ink of "im Gaskammer" was darker than the rest and the writing was a little bit bolder.
Could someone provide us with a better version?
Just another example of a forgery.
I do not see any problem in the document
Your hypothesis is unfounded.
Leaving aside that your hypothesis has been refuted I would like to add that people produce spelling errors no matter if they are native Germans, Americans or whatever, so to base your hypothesis solely on the presence of spelling errors is really unfounded and I must say - completely wrong approach. In this case I saw tons of forged text including my own text written in my native language since I produce errors too. People in television have forged voices since they produce errors as well, sometime quite ridiculous errors.