11. The ouvrage consists of one entry block and two observation blocks at an altitude of. 12. If the exit block is unreachable from the entry block , an infinite loop may exist. 13. Work for the unbuilt second phase included a separate entry blocks and an 81mm mortar turret block. 14. The " ouvrage " consists of two entry blocks and one observation block facing Italy. 15. The ouvrage consists of two entry blocks and one observation block facing Italy at an altitude of. 16. The ouvrage consists of one entry block and two artillery blocks facing Italy at an altitude of. 17. The ouvrage consists of one entry block , four artillery blocks and two observation blocks facing Italy. 18. The ouvrage consists of one entry block , two artillery blocks and one observation block above Sospel. 19. The ouvrage consists of one entry block , two artillery blocks and one observation block facing Italy. 20. The entry block and an artillery block were not completed, and a further block was never built.
