Come on people if you find century old ordnance in your back yard, make sure it has a flared base!
Stick with mortar rounds, not shells for infantry support guns or artillery!
The described size of the shell is interesting. “Over 3 centimeters” sounds like it could be a 3.7cm shell which were fairly common in WW1 but, none of those were “20 cm long” most being closer to 10 cm, such as the the 37mm mle.1916, the 1 pounder pom pom and the 3.7 cm TAK 1918.
Later ww2 3.7mm shells were often close to 20cm in length though.
IT KEEPS HAPPENING!
Come on people if you find century old ordnance in your back yard, make sure it has a flared base!
Stick with mortar rounds, not shells for infantry support guns or artillery!
The described size of the shell is interesting. “Over 3 centimeters” sounds like it could be a 3.7cm shell which were fairly common in WW1 but, none of those were “20 cm long” most being closer to 10 cm, such as the the 37mm mle.1916, the 1 pounder pom pom and the 3.7 cm TAK 1918.
Later ww2 3.7mm shells were often close to 20cm in length though.