Un proiettile da mortaio da 305 mm della prima guerra mondiale, recentemente dissotterrato, vicino all’edificio dell’Assemblea a Belgrado

Most likely a 285kg shell, as the 305mm ones came in 280-380kg range.

Pictured:

1) Serbian police measuring the shell prior to demining

2) A Škoda 305mm siege mortar at the Belgrade fortress which would have fired the round

3) Highlighted is the Assembly building (under construction) in 1914.