5 Reichspfennig 1925 F [επιλυμένο]

Hello colleagues
Please expert German coins.
https://en.numista.com/catalogue/pieces851.html
or
https://en.numista.com/catalogue/pieces1913.html

I'm completely confused. I bought at auction for 1 Kč (CZE) = 0,05 USD. Weighing and measuring devices are professional and calibrated. The values of both the weight and the average are in conflict with NUMISTA / and also from NGC weight values.
Please, what's the problem? What is the correct coinage? Where to place it ?
Thank you , Ivan

Well, it says Reichspfennig on the coin, so then it's this one: https://en.numista.com/catalogue/pieces851.html
The other one is a Rentenpfennig.

Απόσπασμα: "ngdawa"​Well, it says Reichspfennig on the coin, so then it's this one: https://en.numista.com/catalogue/pieces851.html
​The other one is a Rentenpfennig.

​Thank you-I'm watching, but I do not read. It missed me. It is equally odd that everyone gives a diameter of 18 mm.
Thank you for the warning - the lesson to read mainly.
Ivan

On your Vernier Caliper, it reads 17.97 and on the listing it states 18, so I do not know how anyone could possibly see the difference with the human eye.
This equates to a difference of 0.00118". Even this insignificant difference could be down to wear.