1. Maxim 7.62 machine guns at casemate's mounts 2. Ball armor in the embrasures 3. Periscope 4. Filter and ventilation equipment 5. Fan with manual drive 6. Air intake 7. Air ducts of the gas suction system 8. Powder gas emission 9, 10 Water tanks of the machine gun cooling system 11. Manual water pump 12. Water pipes 13. Water intake / drainage cable channels 14. Stove 15. Smoke valve 16.17 Chimney 18. Entrance door 19. Folding seats 20. Holder for entrenching tools 21. Hanger 22. Electrical panel
1. Entrance to the bunker
2. Underground passage to the vaults of the church
3. Gateway with armoured doors
4. Emergency exit with two hatches
5. Earth bulwark of the bunker.