Carfolio.com Grade specifications A list of Grade models from the Carfolio.com technical specifications database. https://www.carfolio.com/grade/7417/rss/ en-gb Mon, 2 Feb 2011 1922 Grade 4/12 specifications Full specifications of 1922 Grade 4/12 Mon, 2 Feb 2011 https://www.carfolio.com/grade-4-12-233607 https://www.carfolio.com/grade-4-12-233607