10 Reichspfennig 1940 [solved]

Hello,
do you consider these two coins being the same ( https://en.numista.com/catalogue/pieces1929.html )
Diameter and weight are the same, as in the link above. Color is different, different composition maybe or just corrosion... Thanks!

And similar question about these two. Thanks!
https://en.numista.com/catalogue/pieces1916.html

Quote: "coins2021"​Hello,
​do you consider these two coins being the same ( https://en.numista.com/catalogue/pieces1929.html )
​Diameter and weight are the same, as in the link above. Color is different, different composition maybe or just corrosion... Thanks!
​
​

​If you search for "10 Reichspfennig" you will quickly find, that there is a zinc and a brass version:
https://en.numista.com/catalogue/pieces1929.html
https://en.numista.com/catalogue/pieces15267.html

According the colours (without being able to read the year of the second one), I would go for "different coins" ;-)

Quote: "coins2021"​And similar question about these two. Thanks!
​https://en.numista.com/catalogue/pieces1916.html
​
​
​

​Here it should be the same coin

Quote: "caesar1990​"​​If you search for "10 Reichspfennig" you will quickly find, that there is a zinc and a brass version:
​https://en.numista.com/catalogue/pieces1929.html
​https://en.numista.com/catalogue/pieces15267.html
​
​According the colours (without being able to read the year of the second one), I would go for "different coins" ;-)

​Thanks, but in both these links I see Composition - Zinc. That's a mistake or...

I think this link was meant
https://en.numista.com/catalogue/pieces2341.html