Numbering: The Westwall on the western border of Germany and France.

thanks to Daniel Schellenberger for the explanation of the number!
Baujahr 1938-39
year of construction 1938/39
Limes Programm
Regimentsabschnitt 8
Bauwerk 406

Inside an unknown bunkertype, Beaufort, Lux.

photo: GA

Baujahr N38364

Inside a bunker B1-7aII, Besseringen, D

photo: ER