Austro-Hungarian 21cm projectile

[bombasz]

Hi Alpini
number two drivingbrand , the diameter a little later say, is measured by the soldiers.
the firing range found in garnet splinters even greater

 

[bombasz]

2 - 10,5 cm
2 - 15 cm
1 - ?????????????

 

[bombasz]

21 cm Mrser 1910 M !! ??