Swallow Sidecar Company, Swallow Sidecar and Coachbuilding Company, and Swallow Coachbuilding Company were trading names used by Walmsley & Lyons, partners and joint owners of a British manufacturer of motorcycle sidecars and automobile bodies in Blackpool, Lancashire, before incorporating a company in 1930 to own their business, which they named Swallow Coachbuilding Company Limited. Wikipedia