The Brass Era is an American term for the early period of automotive manufacturing, named for the prominent brass fittings used during this time for such things as lights and radiators. It is generally considered to encompass 1896 through 1915, a time when these vehicles were often referred to as horseless carriages.
Elsewhere in the world this period would be considered by antique car enthusiasts to consist of the veteran (pre-1904), and Edwardian eras, although these terms are really not meaningful outside the former British Empire.
Within the 20 years that make up this era, the various experimental designs and alternative power systems would be marginalised. Although the modern touring car had been invented earlier, it was not until Panhard et Levassor's Système Panhard was widely licensed and adopted that recognisable and standardised automobiles were created. This system specified front-engined, rear-wheel drive internal combustion engined cars with a sliding gear transmission. Initially the high-wheel motor buggy (resembling the horse buggy of before 1900) was in its heyday, with over 75 makers, including Holsman (Chicago), IHC (Chicago), and Lincoln Motor Car Works but were only gradually abandoned, in favor of the more advanced runabouts, tonneaus and other more expensive closed bodies - and killed off by the Ford Model T.