• Locations
• France
• Bretagne north
• Le Ménez

• L 401-I
• L 401-II
• L 401-III
• L 401-IV
• L 401-V
• L 401-VI
• L 403 out
• L 403 in (2)
• L 407 (2)

L 403

One gaslock seen from the room for the ventilators.

The steel doors were never placed.

Neither is the thin wall of the room for the cable entries.

In detail.