Amazon.com : 3M Adjustable Document Copy Holder, In-line with Monitor Minimizing Head and Neck Movement, 150 Sheet Capacity Holds Sheets to Books, Elastic Line Guide Keeps Pages Open, 14" Wide, Black (DH630) :
3m desktop document holder with adjustable clip, holds letter, legal and a4 documents, bottom ledge has lip to keep up to 150 sheets securely in place, folds flat for storage, black (dh340mb) -
3M™ Flat Panel Document Holder, DH445 | 3M United States
3M In Line Adjustable Document Holder - Office Depot