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Three are known to have survived. One surviving 3-inch wrought iron Wiard rifle exists, but it has an unusual band across the trunnions. [8] The Confederate States manufactured an estimated 84 cast iron 3-inch rifles, at least 61 of them at the Tredegar Iron Works; [9] several appear to be imitations of the U.S. Ordnance Department design. [10]
178 mm (7.0 in) RBL 7 inch Armstrong gun United Kingdom: 1860s 178 mm (7.0 in) RML 7 inch gun United Kingdom: 1860s - 1890s 180 mm (7.1 in) Gonzalez Hontoria de 18 cm mod 1879 Spain: 1879 – 1900s 180 mm (7.1 in) Gonzalez Hontoria de 18 cm mod 1883 Spain: 1883 – 1910s 180 mm (7.1 in) 180mm Pattern 1931-1933 Soviet Union: World War II
Exact O scale of 7 mm = 1 foot. 1:43: 7.088 mm: Die-cast cars: Still the most popular scale for die-cast cars worldwide, metric or otherwise. It originates from British O scale. 1:40: 0.3 in: 7.620 mm The very early models of the British Coronation Coach and a few other horse-drawn wagons were made in this scale.
Mill scale, often shortened to just scale, is the flaky surface of hot rolled steel, consisting of the mixed iron oxides iron(II) oxide (FeO, wüstite), iron(III) oxide (Fe 2 O 3, hematite), and iron(II,III) oxide (Fe 3 O 4, magnetite). Mill scale is formed on the outer surfaces of plates, sheets or profiles when they are produced by passing ...
3.8-inch Gun, Models of 1904 and 1907 Similar to the 3-inch gun, but scaled up with a significantly longer barrel - 111.25 inches (2.826 m) overall gun body length instead of 87.8 inches (2.23 m) - in a larger caliber, with a lengthened recoil - 58.5 inches (1.49 m) instead of 45 inches (1.1 m) - as well as with a different extractor.
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Modell railroads in 7 mm scale (7 mm to 1 foot scale with a scale ratio of 1:43.5). Pages in category "7 mm scale" The following 4 pages are in this category, out of ...
Because both grades guarantee a minimum piece thickness – at least 1 ⁄ 4 inch (6.35 mm) for HMS 1, and 1 ⁄ 8 inch (3.175 mm) for HMS 2 – consignments have a high density. Both also have defined maximum dimensions (usually 60 in × 24 in or 1,524 mm × 610 mm), and should be prepared to facilitate handling and charging to a furnace.