1943 T. Roethke in Nov. 69 I have known the inexorable sadness of pencils, Neat in their boxes, dolor of pad and paper-weight, All the misery of manilla folders and mucilage, Desolation in immaculate public places.
1947 E. Hodgins (1953) x. 116 Mr Blandings opened the manilla folder.
1993 J. Meades (1994) 245 Bonny replaces the albums in the gladstone and picks up a manilla folder, opens it.