Brass than in brass produced by cementation. These may be "natural alloys" manufactured by smelting zinc rich copper ores in redox conditions. Many have similar tin contents to contemporary bronze artefacts and it is possible that some copper-zinc alloys were accidental and perhaps not even distinguished from copper. However the large number of copper-zinc alloys now known suggests that at least some were deliberately manufactured and many have zinc contents of more than 12% wt which would have resulted in a distinctive golden color. By the 8th–7th century BC Assyrian cuneiform tablets mention the exploitation of the "copper of the mountains"
Wabash Alloys Locomotive Wabash Alloys Locomotive The Wabash Alloys Locomotive is a GE 25-ton diesel-electric locomotive built in 1940-43. Little is known about its early life, but from around 1970, it worked at Wabash Alloys, a producer of aluminum alloys, at Haskell, Arkansas. It eventually became surplus to the company's needs and they donated it to the Arkansas Railroad Museum at Pine Bluff, Arkansas on March 8, 2003. The 25-ton model was the smallest locomotive in the GE range in the 1940s and 50s. It was designed for the small industrial user. With and of tractive effort, it could pull half a dozen