1920 - 1928
The brothers Herbert and Percy Seabrook founded their business as cycle component factors in 1895 in Great Eastern Street, London. In 1911 they added cars to the lines, importing the American made Regal, which they sold as the RMC or Seabrook-RMC. At the 1919 Olympia Show they exhibited a tourer of American origin powered by a 3.8 litre 6-cylinder engine. Few, if any were sold and the following year they launched a light car of wholly British design.
The 11.9hp Seabrook had a 1795cc light alloy 4-cylinder engine with shaft-driven single-ohc, said to have been made in London. The prices were very high at £775 for a deluxe 2-seater. In 1921 they used a 14995cc Dorman engine with twin high-camshafts on the lines of the later Riley Nine. They ordered 41 of these engines, which probably marked the total for this model, as from 1923 onwards they bought 1495cc engines from Meadows. Apart from the standard sporting 2-seater, Seabrook offered a special model in 1924 on the 12/24 chassis, with large outside exhaust pipe and a single headlamp at the buyer's request. 160 Meadows-engined cars were made, the majority before the Seabrooks retired in 1926. The make was listed up to 1928, but it is not certain if any cars were made that year.
Source: Nick Georgano / The Beaulieu Encyclopaedia of the Automobile