Re: Inscribed mark Vi
Not all years of the Mark VI specifically said Mark VI on the instrument.
There is a serial number list in the upper corner of this page. Find your serial number so you know what year it is. Then compare it to the many examples on the internet of your years instrument.
Do you have reason to feel you bought a fake from a nonreputable person?
Nobody but yourself can help you with that. You should know what you are buying first. Ask your questions before you purchase. Your mother should have taught you that.