United States Marine Raider stiletto United States Marine Raider stiletto The U.S. Marine Raider stiletto was a stiletto and combat knife issued to the Marine Raiders and 1st Canadian Parachute Battalion during World War II. At the start of World War II, the Mark I Trench Knife was the only knife issued to Marines. It was introduced during World War I for trench warfare, but its "knuckle duster" hilt was cumbersome and contained nearly of brass, making the knife expensive to produce. In addition, the Mark I could not be held in the "fencing-grip" position, the preferred position for the thrust. The Marine Corps began
Heel-shaped cairn Heel-shaped cairn The heel-shaped cairn, with its usually cruciform chamber, is a type of megalithic monument that is found in Scotland, especially in Caithness and Sutherland and on the Shetland Islands. On Orkney, the Isbister Cairn is the only site that is similar in shape. The chambers usually lie in a round cairn made of broken rocks, which either contemporaneously or later were surrounded by the eponymous platform, up to 20 metres wide at the front and from 1.0 to 1.5 metres high, and were partly enclosed by large kerbstones. A gentle concave exedra is characteristic of the front face.