This bunker had 2 cupolas for Mg (20P7), an observation cupola 438P01 and a 424P01 cupola for the M19 mortar. An additional 420P9 was used for the FN flame thrower. Both 20P7s have been removed. Together it was a lot of firepower.
The bunker is closed for men, not for the bats.
Note the big 30 cm air grids.
The 438P01 cupola together with the air intake 409P9.
This was the place for a 20P7 Mg cupola.
This is the nozzle for the flame thrower.
The outside ring for the mortar is covered.
One big bolt for a Mg cupola has survived.