パリ砲
The Paris Gun shells weighed . The shells initially used had a diameter of and a length of . The main body of the shell was composed of thick steel, containing of TNT. The small amount of explosive – around 6.6% of the weight of the shell – meant that the effect of its shellburst was small for the shell's size. The thickness of the shell casing, to withstand the forces of firing, meant that shells would explode into a comparatively small number of large fragments, limiting their destructive effect. A crater produced by a shell falling in the Tuileries Garden was described by an eyewitness as being across and deep.