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[5./JG27.Farber]

Hey EZ, thats 5 Staffel JG27 in the first image. Often in books its shown with the red bar, however every other squadron has the same bar colour as the number! So is this an error somewhere that everyone has copied or did they use a red bar and black letters? Other times you see this Staffel with Black number and black bar?! Which is correct and do you have any info? Was there a date and time this changed over or is it simply an error?

Thanks.