A list of Vernon-Derby models from the Carfolio.com technical specifications database. https://www.carfolio.com/vernon-derby/6469/rss/ en-gb Mon, 2 Sep 1997 Full specifications of 1929 Vernon-Derby Mon, 2 Sep 1997 https://www.carfolio.com/vernon-derby--18414 https://www.carfolio.com/vernon-derby--18414 Full specifications of 1929 Vernon-Derby Mon, 2 Sep 1997 https://www.carfolio.com/vernon-derby--18491 https://www.carfolio.com/vernon-derby--18491 Full specifications of 1927 Vernon-Derby Mon, 2 Sep 1997 https://www.carfolio.com/vernon-derby--17842 https://www.carfolio.com/vernon-derby--17842