Lodz Ghetto 10 mark: genuine or fake?

Dear users,
I recently purchased the topic coin from Ebay. The user had a good reputation and reviews, and the coin seems to match the thin variation of this item:
https://en.numista.com/catalogue/pieces10846.html
Description: aluminum, 1.7 mm thick, VF, see size and condition on the photo (on the light background).

When I received the coin (VF), some details attracted my attention.
1) The reference photos of the coin display quite a prominent rim around letters and numbers.
On my coin, the rim was hardly visible, as if it was severely worn out, and is even harder to see on the photo.

2) Another suspicious detail is marked with the orange triangle on the photo: it is a mysteriously raised sector on the coin, whose borders are parallel to the sides of the orange triangle. There are also a couple of dentures that look like the stamp defects (the two orange circles).

Would you say anything about this?

I will not undertake to judge the authenticity, but here are the same flaws as on your coin ...
https://www.cgbfr.com/pologne-occupation-allemande-ghetto-de-lodz-10-mark-1943-lodz-ttb,fwo_534076,a.html

I would like to revive the topic once again. First of all, thank you Konstantin1968, it looks like my coin was genuine. However, may I ask the same question about another one, see below, from my friend's collection?

Łódź ghetto marks figured on the forum before: https://en.numista.com/forum/topic49261.html

What is said there (as well as here) is that there are more fakes around than original ones, and that they are hard to distinguish, so you have to be very, very careful.

In the Numista forum thread, there is a reference to www.litzmannstadt-getto.com, which unfortunately runs dead now. I remember that this site was from a polish lawyer or so who was specialized in authenticating these coins, and that that went far beyond the capabilities of amateurs, even of those with the best intentions.

I found a backup of the site you were referring to (though I'm mot sure if all its sub-pages have survived:

http://web.archive.org/web/20190107170111/http://www.litzmannstadt-getto.com/

Hope this helps!

Hi all,

Years ago I bought an alu/magnesium 10 Mark getto coin.
I also was not sure about it being real or fake so I send it to
the expert for these coins in Germany, Mr. Franquinet.
I believe he also wrote a book about these coins.
Maybe this is of help for you.

Bronckhorstcoins.