Eisenbahnmörser

Seismographic perceptions
As this monster rides
Iron wheels hit bars of steel
A presence of pure might
Offspring of the smelters
Born in the forge
Assembling nails, rolled out on rails
The son of mother war
Roaring over battlefields
Weaken the enemy
Shape of solid alloy
Breathing hostility
A gross violator
The core of destruction
Giant railwaymortar
Father of all guns
Terrifying arrogance
Frightening his grace
Huge machine, staring mean
Death in her pale face
Lowering the barrel
Fed by well-trained hands
Await the first cracking burst
At the final command
Fever!
Blazing fire
Debut round
Lumbering recoil
Screaming sound
16 gunners
Grease and sweat
Co-ordinates
Glowing lead
Large projectiles
Red hot shells
An infernal
Burning hell
Split the earth crust
Volcanus
Bring the ordeal
Colossus
Operating distance
Around 6.5k
Munition carriers supply
Anti-concrete grenades
Assumed secure bunkers
In the reinforced stronghold
Explosions shredding armour
Nullify safe vaults
All defense now broken
By the grand device
Smouldering ruins, shattered tombs
That once were fortified
The bombardment ended
Conquering mastodon
A majesty, in victory
The terror of the front