| 21. | A wall offers a gallery and embrasures for the rifles.
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| 22. | The roof featured a sixth level with embrasures for firing.
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| 23. | The battery had a large parapet with nine embrasures and a magazine.
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| 24. | Concerning this function, Fort Willem I contains no embrasure nor bastions.
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| 25. | This elevated section had embrasures at the front and sides for machine guns.
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| 26. | The casemates were then filled in and embrasures closed.
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| 27. | There are also embrasures and windows suitable for archers.
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| 28. | These included twenty 50-calibre Canet QF guns mounted in hull embrasures.
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| 29. | Each face of the fort has three embrasures, one above the other.
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| 30. | Her ten Hotchkiss guns were mounted in embrasures in the hull or superstructure.
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