The Chartwell 2126 is an optical survey book which come pre-printed with 2 red vertical lines down the middle section of the page parallel to each other. The 2126 book is more suited for optical surveying (line surveys etc) in that it has a longer size page, 205 mm long allowing you to fit more data per page. Made from 50% rag bond paper with Chartwells distinguished yellow hard back cover, the book is waterproof and resistant to a variety of outdoor conditions.
