WW2 German Uniform Buttons Kriegsmarine 1940 20mm lot of 6

Description

These buttons were found near Kharkiv, Ukraine. Probably Kriegsmarine artillery.
There were battles in 1941 and in 1943, in 1942 the Germans surrounded and destroyed several Red armies there.
Five zinc buttons, one without fasteners.
And one aluminum with a 1940 Kriegsmarine stamp and slight oxidation on the front side.
I combine shipping costs for all lots.
All items will  be sent by airmail with tracking number.
Due to the criminal aggression of Russia against Ukraine, the delivery time for parcels is increasing.
But the post of Ukraine works, the parcels go to Poland, and then they are delivered by airmail.