Document file - has metal component detached by to=and=fro movement to allow stacking flat when empty

摘要

The file for correspondence and other documents, has a metal portion with two vertical cylinders (3) fixed to its cardboard back, the documents fitting over the cylinders. The metal component is easily detached from the file by moving it to and fro. Thus empty files occupy the minimum amount of space when stacked. A metal stirrup can be provided, curved at the ends so as to fit in the cylinders and prevent the documents coming free. ADVANTAGE - Easy stacking when open and empty.