Editing Typewriter (section)

=== Erasing shield ===
[[File:Erasing Shield Stainless Steel.jpg|thumb|Erasing Shield (1992)]]
Erasing a set of [[carbon copies]] was particularly difficult, and called for the use of a device called an [[erasing shield]] or eraser shield, a thin stainless-steel rectangle about {{convert|2|by|3|in}} with several tiny holes in it. This would prevent the pressure of erasing on the upper copies from producing carbon smudges on the lower copies. To correct copies, typists had to go from one carbon copy layer to the next carbon copy layer, trying not to get their fingers dirty as they leafed through the carbon papers, and moving and repositioning the eraser shield and eraser for each copy.