identification an ancient coin? [solved]

Maybe someone knows what kind of coin? and is it real?
Coin weight: 8.92 grams
Dimensions: 3x3 cm.

4 reales colonial?
Rotate first pic.

propably fake/replica/copy
Did you buy this one?
If no, it is a replica
Here is the very same coin, but that is rare that you find two identic hammered coins.
https://coinreplicas.com/product/1753-potosi-4-reales-spanish-silver-cob/

I hope you did not pay to much for it.
Please send the pictures to:
https://www.sedwickcoins.com/fake_cobs.htm

Fake -It looks machined to mimic an old cob coin. Weight is not right and no wear to account for it. For example, 8 Reales = 27g - 4 Reales = 13.5g - 2 Reales -6.7g.
https://en.numista.com/catalogue/index.php?mode=simplifie&p=1&l=perou&r=cob&e=&d=&ca=3&no=&i=&v=&m=&a=&t=&dg=&w=&u=&f=&g=&c=&tb=y&tc=y&cat=y

Quote: "PetrusAscanus"​propably fake/replica/copy
​Did you buy this one?
​If no, it is a replica
​Here is the very same coin, but that is rare that you find two identic hammered coins.
​https://coinreplicas.com/product/1753-potosi-4-reales-spanish-silver-cob/
​
​I hope you did not pay to much for it.
​Please send the pictures to:
​https://www.sedwickcoins.com/fake_cobs.htm

​Yes of course I bought these coins. I purchased
package with 85 foreign coins and tokins for $ 40.
6 coins from this amount obviously "caused" distrust! Thanks to the site that you mentioned above, I made sure that 4 of them are exactly a replica, and I would like to show 2 more coins to all forum participants to get your competent opinion! Thank!!!

1791 CARLOS iv, 8 REALES, MEXICO. Diameter - 36 mm, weight - 22gr,
On both sides of the coin, a rivet with a diameter of 14 mm is located on the center, and a 4x5 mm stamp is located on the front side, apparently showing evidence of restoration.

Brandenburg-Preussen, Kurfürstentum Brandenburg, Friedrich III., 2/3 Taler 1692,
Diameter - 36 mm, weight - 13gr
brass material

Quote: "Polar Bear"​Brandenburg-Preussen, Kurfürstentum Brandenburg, Friedrich III., 2/3 Taler 1692,
​Diameter - 36 mm, weight - 13gr
​brass material

​looks also like a forgery
FRIDERICUS III D.G.M.B.S.R.I.A.C&ELECT :
Fridericus III Dei Gratia Marchio Brandenburgicus Sacri Romani Imperii Archi Camerarius & Elector
Mintmaster HS? (Heinrich Sievertz 1674-77, 79-85, 87-94, Koningsberg mint)

I wonder if this Brandenburg-Preussen coin is what they call a contemporary counterfeit. Some coins are copied in recent times to fool collectors. On the other hand, contemporary counterfeits are forgeries that were made soon after the date on the coins, to be spent as normal money in the region where they were made. They are often made of brass but coated with a silvery material. They often have some miss-spelling in the legends so that if the counterfeiter were caught, he could try to claim he was making coin counters or play money and therefore attempt to escape prosecution. I have a Preussen 8 Groschen coin of 1758 which is too crude to fool any collector, and the inscription is incorrect, but it was designed to fool an illiterate peasant in 1760. Contemporary counterfeits (not modern counterfeits) have some collector interest and value.