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Martinshaw were motorcycles produced from 1923 to 1925, in Twickenham, Middlesex.
1923 The company started with an ambitious range, all fitted with Blackburne engines, stretching from the 348cc sv single to the 998cc V-twin.
1924 The range had shrunk to the 348cc sv model and the similar 545cc sv. Both had Sturmey-Archer gearboxes and all-chain drive.