conventional non-telescopic sights on a rifle
[ahy-ern-smith] /ˈaɪ ərnˌsmɪθ/ noun 1. a worker in iron; blacksmith.
noun, Chemistry. 1. . noun, Chemistry. 1. an emerald-green, crystalline, extremely water-soluble salt, used in photography and blueprinting.
noun, Metallurgy. 1. .
[ahy-ern-stohn] /ˈaɪ ərnˌstoʊn/ noun 1. any iron-bearing mineral or rock with siliceous impurities. 2. Also called ironstone china. a hard white stoneware. /ˈaɪənˌstəʊn/ noun 1. any rock consisting mainly of an iron-bearing ore 2. Also called ironstone china. a tough durable earthenware