Another P.08 gauge to worry about...

[fausto]

Hello to you all !
In an old thread I sent some pictures of very nice P.08 headspace gauges. The problem was if they were original or fakes. Some days ago I got another P.08 headspace gauge. This time it is marked Erma, and it is a "N" (normal) go-gauge. As you can see has all proper markings, including correct item code and "Reichsheer" . No WaffenAmt, but an old styled eagle (sorry no picture) on the flat top of the gauge. If it is a fake it is very finely made: a masterpiece. But the question is: is it original ?
I would be very pleased to know your opinion... Thanks
Fausto