The story
The A.E.C. company was founded in April 1912 by a man named Walter A. Anger. He was described as "a well-known auto tradesman". He had either T-head or L-head engines with either four or six cylinders. Most cars were built custom made. In 1915, the company went under.
From Wikipedia’s article on Anger Engineering Company, shared under CC BY-SA 4.0.3