Abstract: A document file is provided comprising a back (1, 21), a connecting spine (2, 22) with top (3, 24) and bottom (4, 25) walls connecting with the spine to form a three sided enclosure with the back. A cover (5, 26) for the document file has at its free edge opposite its attachment to the spine, a sidewall (6, 30) adapted to form with the back, spine, top and bottom walls in the closed condition of the document file, a closed box. The back preferably has an extension (7, 31) extending along at least a part of its edge opposite its attachment to the spine such that it projects beyond the sidewall of the cover in the closed condition of the document file. The top and bottom edges of the cover preferably have top (10, 27) and bottom (11, 28) wall sections adapted to fit inside or outside the top and bottom walls in the closed condition. The invention also provides a document file blank for erection to form a document file as provided by the invention.

Abstract: An air-drop carton comprising a plurality of sachets, each individually containing food, medical supplies or other aid-related contents in granular or preferably powdered form, and a wrapper which packages the sachets to form and define the so-called carton. Each sachet is so sized, shaped and filled or part-filled that, when released from the confines of the wrapper at air-drop altitude it tends to feather-fall rather than free-fall earthwards. The wrapper is configured and so arranged about the sachets, that while it tends to hold the sachets in their cartoned format as they sit in an aircraft immediately prior to being air-dropped, the wrapper is designed to disintegrate from the cartoned format sufficiently to release the sachets for individual flight after the carton leaves the aircraft. The invention also discloses a method of air-dropping food, medical supplies or other aid-related contents and a sachet intended for use in an air-drop carton.