| 摘要 |
A folio is comprised of a sheet of flat, expansive panel stock having a backing region and a document retention region that is folded about a laterally-extending fold or folds against the backing region. The sheet is also folded longitudinally perpendicular to the laterally-extending fold in articulated fashion to define a plurality of panels or leaves. Specifically, the longitudinal folds form a pair of mutually-adjacent interior panels and a pair of side panels. A separate one of the side panels is joined to each of the interior panels by longitudinal side panel delineating folds. Each of the side panels has one bound edge and one unbound edge. The bound edges of the side panels are secured to each other, preferably by means of transition webs that are defined between the side panels and the interior panels. The folio may include a jacket within which the sheet of folded stock forming the interior panels and side panels is encompassed. The document retention portion of the structure may take the form of pockets defined onto the various panels or document retention tabs that are punched to receive conventional pronged fasteners for securing papers punched at the top.
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