to specialst manufacturers, led by Alvis , Aston-Martin , and Frazer-Nash , with shoestring budgets, fanatic followers, and limited sales (today exemplified by Aston and Morgan ): between 1921 and 1939, 350 Astons were built; 323 Frazer-Nashes in the period 1924-39. [4] By the end of the 1920s, AC produced a