Distributing past office

from The Collaborative International Dictionary of English v.0.48

Distributing \Dis*trib"u*ting\, a.
   That distributes; dealing out.
   [1913 Webster]

   {Distributing past office}, an office where the mails for a
      large district are collected to be assorted according to
      their destination and forwarded.
      [1913 Webster]