Young digger I am under a year...
actually I am building metal detectors and testing on close by hill / ex fort / wood / park
Those two are my first flare casings ...
The markings and font remind me of the launcher cartridges for the big 120mm Russian mortars. Are you anywhere near where the Russians may have been?
Bosnia and Herzegovina ...
location has activity for 200+ years
German / Croatian / Hungarian occupation WWII
Yugoslavian army after 1943/1944 - 1950
public park 50 years