Carfolio.com Piedmont specifications A list of Piedmont models from the Carfolio.com technical specifications database. https://www.carfolio.com/piedmont/7329/rss/ en-gb Mon, 2 May 2010 1921 Piedmont 4-30 specifications Full specifications of 1921 Piedmont 4-30 Mon, 2 May 2010 https://www.carfolio.com/piedmont-4-30-214863 https://www.carfolio.com/piedmont-4-30-214863 1921 Piedmont 6-40 specifications Full specifications of 1921 Piedmont 6-40 Mon, 2 May 2010 https://www.carfolio.com/piedmont-6-40-214764 https://www.carfolio.com/piedmont-6-40-214764