| 21. | The Bull had no gun ports, but these could be added in the final production model.
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| 22. | The only frontal armament was machine gun ports in cupolas designed for observation and anti-infantry purposes.
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| 23. | By this time, flooding had increased to the point that the casemate gun ports were submerged.
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| 24. | The front and read elevations feature gun ports cut into the logs, high in the walls.
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| 25. | In 1874 the ship was rearmed with 16 gun ports had to be widened to accommodate them.
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| 26. | However, by 10 May, most of the bunkers were incomplete, lacking gun port shutters for the artillery casemates.
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| 27. | It may have had gun ports.
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| 28. | Three of the gun ports were on the second floor and a fourth was on the first floor.
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| 29. | The casemate was furnished with a 25mm anti-tank gun, a machine gun port and an automatic rifle port.
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| 30. | During the Second World War it was converted into a fortified pillbox with gun ports in the sides.
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