Common Pillbox Types:
Type 22 - Regular Hexagon with walls approximately 6 ft long,desined for infantry with rifles and light machine guns.
Type 23 - Rectangular with a roofed section approximately 8 ft and an open section the same size for a light AA weapon.
Type 24 - Hexagonal but with a rear wall approximately 14 ft long and adjoining walls which meet it at an angle of about 90 degrees.
Designed for infantry with light machine guns.
Type 25 - Circular,otherwise as for Type 22.
Type 26 - Square,approximately 8 ft by 8 ft,otherwise as Type 22.
Type 27 - Large Hexagon or Octagon with an open area in the centre for a light AA weapon.
Type 28 - Large and rectangular with thick walls.
Designed for 2 pdr or 6 pdr Anti-Tank gun.
Type 28a - As Type 28 but with a seperate chamber for infantry.
Type 28a Twin - As Type 28a but with two Anti-Tank embrasures in two adjoining walls.
There are also variations of these Pillbox types and other specialist types which are not listed here.
