Unique Perforation 799A

799A (Unick)
I got a collection of very rare and unique brands and I need your help!!!
A unique brand for perforation, perf. 13.3/4 x 14.1/4. According to the Michel catalog, there is perforation L12.1/2 (20.3.1942) and another variety 799A with perforation K14 (1944).
Perforation 13.3/4 x 14.1/4 does not exist according to catalogues, but as you can see the facts are a stubborn thing!!!
The last screenshot shows all the available information about the 799A brand.

Why is the face blocked out?

Sensitivity to Nazi images in Germany?

On the stamp itself, I presume the OP, if his measurements are correct, is simply forgetting that catalogues round up or down.

Why is the face blocked out?

In Germany, it is forbidden to display Nazi symbols, including its self-appointed great leader. Obviously 123ber is a German collector so he is just being safe.

Is there no end to this clown's RRR+ posts?

NO

How about some decaf then

Your second image clearly shows that the stamp is perf 14, not 14 1/4. Therefore Michel 799B, 7 Euros. Not rare, either.
It's a stamp, not a brand. Stop using Google Translate and go with something better. Try DeepL.

Germania I was ready for your answer :)
In the photo there is a brand on a ruler with perforation 14. You see there are no matches, it's definitely perforation 14.1/4 and not 14 as you say.
I know how to measure perforation!!!
Sincerely!!!

It is quite common for catalogues to round to the nearest half. So, if the perforation is anywhere between 14 and 14.25, it will be listed as 14. Unless two perforators were used there cannot even be a variety.

Yours is, as Germania wrote.