"Neither Rain, Nor Sleet, Nor Mutant Aliens . . . ." Wait, What?

From the "You're Making That Up" Department:  Pappy's Golden Age Comics Blogzine posted a 1940 issue of Speed Comics featuring "Mars Mason of the Interplanetary Mail Service."  I kid you not.  This comic book hero was a space travelling postal carrier.  Just think what postage rates would be for that home delivery!