Bankers box - why in the world do we use that term for "any box made of heavy-duty corrugated cardboard that is roughly the height and width of a file folder and the length of a file cabinet drawer"?
Well, first of all, we shouldn't. Bankers Box is a registered trademark of Fellowes, the company now known to many of us for its shredders - although it makes many more products, including the boxes. Fellowes actually started life in 1917 as the Bankers Box Company! As the company explains:
Harry L. Fellowes bought a fledgling box business from an acquaintance, Walter Nickel, who was called up during World War I. Purchased for just $50, the company manufactured and sold a corrugated filing box designed for bank records. With a newly passed amendment instituting a federal income tax, records retention became a necessity.Now Fellowes provides a wide range of Bankers Boxes - including the one shown above, made from 100% post consumer waste materials.
If you need the acid-free archival-quality equivalent of a Bankers Box, you can look at the document storage boxes from Archival Suppliers. Update on Oct. 24, 2012: Archival Suppliers seems to have disappeared, but you can find boxes like this from University Products.
Hollinger Metal Edge also provides archival-quality document boxes.