I have my doubts... They would have gotten their tunics at musterung and kept them after being transfered...
I know Tom and I have different views on this, but there were no photographic instructions... If you tell a unit back in Germany to sew things on their lower sleeve, then a unit in the field, then a detached unit... it must have pretty much ben up to the iniative of the tailor where he put it...
Then once the guys came from the ersatz battalion to the field regiment, someone would have said "Hey, you newbies are wearing it wrong......"
I can think of a few times in the army when verbal instructions led to people doing things wrong/differently
But we will have to agree to disagree on that...