The
original name was
“cement encased fighting vehicle”
The infantry bunkers consisted of old Sherman
(U.S.) and Ram (Canadian) tanks around which cement
was poured.
Different types of weapons were deployed. The original Sherman tank had a 76.2 millimeter anti-tank canon; the water-cooled Vickers or Browning .30 caliber machinegun; the air-cooled Bren or Browning .30 caliber machinegun.