Delta Electric Co. stock specimen
Delta Powerlite Lantern top lens guard .
The first PowerLite lanterns didn’t have a guard and since the first ones had glass lenses they soon got broken, so Delta added “quickly” the guard to keep sales going and then later changed both lenses to plastic for the 2nd generation.
The guard is common, almost every lantern you see has one , but they also sold it as an accessory to add to your first generation lantern , this is that accessory . I’ve never seen one in the box
And a Delta rear fender mounted brake light