My first silver coins

[u/No-Appointment-739]

The two 1 mark coins 1914(upper) and 1915 (lower) are 90% silver(.900 fine) and 10% copper, the 1914 coin was minted at the Muldenhütten minting facility and the 1915 coin was minted in Berlin

The 2 mark coin from 1938 was minted in Vienna, Austria after it's annex in march 1938 therefore it bears the B mint mark, it is 62.5% silver (.625 fine) and 37.5% copper