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A portcullis (from Old French porte coleice 'sliding gate') is a heavy, vertically closing gate typically found in medieval fortifications. [1] A portcullis gate is constructed of a latticed grille, made of wood or metal or both, which slides down grooves inset within each jamb of the gateway.
Jewish refugees look out through a porthole of a ship while docked in the port of Haifa, c. 1950–1959. A porthole, sometimes called bull's-eye window or bull's-eye, [1] is a generally circular window used on the hull of ships to admit light and air.
The fire step usually slopes down into a deeper narrow slit called a grenade sump at the bottom to allow for live grenades to be kicked in to minimize damage from grenade fragments. When possible, DFPs are revetted with corrugated iron, star pickets and wire or local substitutes.
Murder holes at Bodiam Castle. A murder hole or meurtrière is a hole in the ceiling of a gateway or passageway in a fortification through which the defenders could shoot, throw or pour harmful substances or objects such as rocks, arrows, scalding water, hot sand, quicklime, or boiling oil, down on attackers.
Enable 2-step for authenticator app. Important - You may not see this option as it yet available for all accounts. 1. Sign in to your Account Security page. 2. Next to "2-Step Verification," click Turn on 2SV. 3. Click Get started. 4. Select Authenticator app for your 2-step verification method.
Operation Portcullis (1–5 December 1942) was the voyage of the Allied Convoy MW 14 with supplies to Malta from Port Said in Egypt during the Second World War. The convoy followed the success of Operation Stoneage (16–20 November) which had raised the Siege of Malta .
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Yett hanging in the main entrance of Blackness Castle, Scotland, showing attached bolts and pierced construction.Wrought in 1693. [1]A yett (from the Old English and Scots language word for "gate") [2] is a gate or grille of latticed wrought iron bars used for defensive purposes in castles and tower houses. [3]