CONE

SN Cones of solid concrete usually 3 feet 6 inches in diameter x 2 feet high which, when placed in rows or groups were intended to form a substantial barrier to enemy armoured divisions in the event of invasion.
CL MILITARY DEFENCE AND FORTIFICATION
BT ANTI TANK BLOCK

 
 

CONE

SN Cones of solid concrete usually 3 feet 6 inches in diameter x 2 feet high which, when placed in rows or groups were intended to form a substantial barrier to enemy armoured divisions in the event of invasion.
CL MILITARY DEFENCE AND FORTIFICATION
BT ANTI TANK BLOCK