Template:Blender 3D: HotKeys/3D View/Edit Mode/ALT-HKEY
Appearance
ALT-HKEY - Unhides vertices, edges, and faces that were previously hidden. Vertices, edges, and faces that are unhidden will be added to the current selection.
ALT-HKEY - Unhides vertices, edges, and faces that were previously hidden. Vertices, edges, and faces that are unhidden will be added to the current selection.