Yes, you've got absolutely right, this thing confused me much. So I decided to make a small investigation. Firstly, I checked the sizes of the stamp. If it was made from rouletted one the sizes should be different (smaller) than basic stamp (in this case 2 A), unfortunately not. The sizes and perforations are the same 1:1 as on basic stamp MiNr. 2A.
Secondly I've checked the gum, if it's regummed it will be visible (original gum structure is similar to honeycomb in larger magnification) and again the answer is no. The gum is untouched. So then I focused on the overprint and checked every detail, measured the angle, width, height and so on. The overprint is exactly as should be and it's visible embossed, so I'm sure that is not a photocopy, it was made by printing plate.
Then I searched Internet and found this: Agramer 10 Ab

An Agramer 10 Ab version not described in basic Michel Deutschland-Katalog (maybe is in Michel-Deutschland-Spezial-Katalog Band 1, but I don't have it). Dark blue overprint same as on my stamp, perforated and the most important thing: This is "Platte I". Everything fits well. The only thing I don't know, why Richter sign is in this position?

PS. If it's forged, it's a masterpiece.

Has anyone have MICHEL Deutschland Spezial Katalog Band 1 or MICHEL Deutsche Feldpost Katalog 1937-1945 and can confirm it? What is the the calatog value of this stamp?

Hello doder!

Three explanations possible:

-Perforation forgery
-Overprint forgery
-Genuine and from Plate II but with spearshead ink smear on the stamp missing

Sincerly silberbub

It would be hepful if you would send a really good scan (1200 dpi-only overprint)....
Why couldn´t it be a Plate II???
Sincerly silberbub

Yes, I've checked it and compared with rouletted stamp Agramer 10 BbI signed by Petry BPP it's the same. From upper left corner of letter "I" to upper right corner of letter "T" is 26 mm. About letters pressed in the paper, I'm confirming this. I took also a photo to prove it. Especially the upper part of letter T is pressed harder, I've checked it against the light and saw something like a small dot.

PS. I thought that Platte II should have this small line / strip on the lower right corner near "T" letter and any other overprint without it is Platte I.

Thank you for your answer. You have right, I wasn't very accurate the lengh is exactly 25,9 mm. Here for everyone interested is a full resolution scan of this stamp 4800 DPI (compressed to 500 kb).