This is 1/76 scale World war 2 Type 28 Pillbox.
The top of the steps at the back of the Pillbox is ground floor.
Pill Box Type 28
Overview and Background
Designed to be a shell-proof structure to house a 2pdr anti-tank or 6pdr hotchkiss gun.
The smallest type 28 was a single-chamber design built to shell-proof standards.
External walls are 3 feet 6 inches (1.1m) thick whilst the roof is 12 inches (30.5cm).
Externally the pillbox measures 20 feet by 19 feet (6.1m by 5.8m) and internally the chamber measures 13 feet by 12 feet (4m by 3.6m).
At the front of the pillbox is the low and wide 2pdr gun embrasure.
With the 2pdr gun in position the shield of the gun would have covered most of the embrasure, which measures 2 feet 6 inches (0.76m by 2m) internally, stepping out to 3 feet 2 inches by 11 feet 6 inches (0.96m by 3.5m) on the outside.
Maximum traverse of the gun is limited to 60 degrees.
Generally, the pillboxes are positioned to allow the gun to fire along fixed lines, such as enfilading fire across an anti-tank ditch or a bridge. In these positions the limited traverse of the gun creates no real disadvantage and the small size of the embrasure provides greater protection for the gun and its crew.